Philippines (original) (raw)

ⓘ Actinolite

Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2

Localities: Reported from at least 19 localities in this region.

ⓘ Actinolite var. Smaragdite

Formula: Ca2(Mg,Fe2+,Cr)5Si8O22(OH)2

ⓘ Aegirine-augite

Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6

ⓘ Albite

Formula: Na(AlSi3O8)

ⓘ 'Alkali Feldspar'

ⓘ Altaite

Formula: PbTe

Localities:

Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Philex-Padcal Mine, Tuba, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Itogon Suyoc mine, Itagon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Llorente river, Samar Island, Eastern Visayas Region, Visayas, Philippines
Victoria Mine, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Alunite

Formula: KAl3(SO4)2(OH)6

Localities: Reported from at least 19 localities in this region.

ⓘ 'Amphibole Supergroup'

Formula: A B2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2

Localities: Reported from at least 8 localities in this region.

ⓘ Analcime

Formula: Na(AlSi2O6) · H2O

ⓘ Andradite

Formula: Ca3Fe3+2(SiO4)3

References:

Bird, D.K., Schiffman, P., Elders, W.A., Williams, A.E., McDowell, S.D. (1984) Calc-silicate mineralization in active geothermal systems. Economic Geology 79:4, 671-695.

ⓘ Anhydrite

Formula: CaSO4

Localities: Reported from at least 28 localities in this region.

ⓘ Anilite

Formula: Cu7S4

ⓘ Ankerite

Formula: Ca(Fe2+,Mg)(CO3)2

ⓘ Annite

Formula: KFe2+3(AlSi3O10)(OH)2

ⓘ Anorthite

Formula: Ca(Al2Si2O8)

Localities:

Bondoc meteorite, Quezon province, Calabarzon Region, Luzon, Philippines
Mount Pinatubo, Central Luzon Region, Luzon, Philippines
Baguio, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Mayon Volcano, Albay Province, Bicol Region, Luzon, Philippines

ⓘ 'Antamokite'

ⓘ Antigorite

Formula: Mg3(Si2O5)(OH)4

ⓘ Antlerite

Formula: Cu3(SO4)(OH)4

ⓘ 'Apatite'

Formula: Ca5(PO4)3(Cl/F/OH)

Localities: Reported from at least 9 localities in this region.

ⓘ Arsenopyrite

Formula: FeAsS

Localities:

Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Co-O Mine, Rosario-Bunawan District, Agusan del Sur Province, Caraga Region, Mindanao, Philippines
Balatoc Diatreme, Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Asbolane

Formula: (Ni,Co)2-xMn4+(O,OH)4 · nH2O

ⓘ Augite

Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6

ⓘ Azurite

Formula: Cu3(CO3)2(OH)2

Localities: Reported from at least 24 localities in this region.

ⓘ Baryte

Formula: BaSO4

Localities: Reported from at least 9 localities in this region.

ⓘ Bassanite

Formula: Ca(SO4) · 0.5H2O

ⓘ 'Biotite'

Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

Localities: Reported from at least 35 localities in this region.

ⓘ Bismuthinite

Formula: Bi2S3

References:

Anthony, John Williams, Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. (1990) Handbook of Mineralogy Vol. 1 - Elements, Sulfides, Sulfosalts. Mineral Data Publishing, Tucson, Arizona.

ⓘ Bornite

Formula: Cu5FeS4

Localities: Reported from at least 42 localities in this region.

ⓘ Bowieite

Formula: Rh2S3

ⓘ Brochantite ?

Formula: Cu4(SO4)(OH)6

ⓘ Brucite

Formula: Mg(OH)2

ⓘ Calaverite

Formula: AuTe2

ⓘ 'Calcic plagioclase'

References:

Fournelle, J., Carmody, R., & Daag, A. S. (1996). Anhydrite-bearing pumices from the June 15, 1991, eruption of Mount Pinatubo: geochemistry, mineralogy, and petrology. Fire and Mud: Eruptions and Lahars of Mount Pinatubo, Philippines, 845-862.

ⓘ Calcite

Formula: CaCO3

Localities: Reported from at least 22 localities in this region.

ⓘ Calcite var. Manganese-bearing Calcite

Formula: (Ca,Mn)CO3

ⓘ Chalcanthite

Formula: CuSO4 · 5H2O

Localities:

Hinoba-an prospect, Hinoba-an, Negros Island, Negros Occidental Province, Negros Island Region, Visayas, Philippines
Marcopper Mine (Tapian Mine), Marinduque Island, Marinduque Province, Western Visayas Region, Visayas, Philippines
Marian Mine, Ifugao Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Chalcocite

Formula: Cu2S

Localities: Reported from at least 22 localities in this region.

ⓘ Chalcopyrite

Formula: CuFeS2

Localities: Reported from at least 67 localities in this region.

ⓘ 'Charcoal'

Formula: C

References:

Figueroa, A. J. T., Gabo-Ratio, J. A. S., Manalo, P. C., Takahashi, R., Sato, H., & Ramos, A. B. (2022). Breccia and vein mineralization of the Balatoc Diatreme, Acupan gold deposit, Baguio Mineral District: An example of a diatreme-hosted epithermal deposit in the Philippines. Ore Geology Reviews, 144, 104826.

ⓘ 'Chlorite Group'

Localities: Reported from at least 46 localities in this region.

ⓘ 'Chrome-Spinel (of Dana)'

ⓘ Chromite

Formula: Fe2+Cr3+2O4

Localities: Reported from at least 12 localities in this region.

ⓘ Chrysocolla

Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1

Localities: Reported from at least 15 localities in this region.

ⓘ Cinnabar

Formula: HgS

Localities:

Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Palawan Mine, Puerto Princesa, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines
Dizon Mine, San Marcelino, Zambales Province, Central Luzon Region, Luzon, Philippines

ⓘ Clausthalite

Formula: PbSe

References:

Hermo, M. I., Balangue-Tarriela, M. I. R., Takahashi, R., Gabo-Ratio, J. A., & Frias, S. M. (2022). Mineralization styles and ore-forming conditions of the quartz-fragment-rich breccia (QBX) at the Didipio alkalic porphyry Cu-Au deposit, Nueva Vizcaya, Philippines. Ore Geology Reviews, 104724.

ⓘ 'Clay minerals'

ⓘ Clinochlore

Formula: Mg5Al(AlSi3O10)(OH)8

Localities:

Coto Mines, Masinloc, Zambales Province, Central Luzon Region, Luzon, Philippines
Acoje Mine, Santa Cruz, Zambales Province, Central Luzon Region, Luzon, Philippines

ⓘ Clinochlore var. Chromium-bearing Clinochlore

Formula: Mg5(Al,Cr)2Si3O10(OH)8

Localities:

Acoje Mine, Santa Cruz, Zambales Province, Central Luzon Region, Luzon, Philippines
Coto Mines, Masinloc, Zambales Province, Central Luzon Region, Luzon, Philippines

ⓘ Clinoptilolite-Na

Formula: Na6(Si30Al6)O72 · 20H2O

ⓘ 'Clinoptilolite Subgroup'

Formula: M3-6(Si30Al6)O72 · 20H2O

ⓘ 'Clinopyroxene Subgroup'

Localities: Reported from at least 8 localities in this region.

ⓘ 'Clinopyroxene Subgroup var. Subcalcic ferroaugite'

References:

Fournelle, J., Carmody, R., & Daag, A. S. (1996). Anhydrite-bearing pumices from the June 15, 1991, eruption of Mount Pinatubo: geochemistry, mineralogy, and petrology. Fire and Mud: Eruptions and Lahars of Mount Pinatubo, Philippines, 845-862.

ⓘ Coloradoite

Formula: HgTe

ⓘ Colusite

Formula: Cu13VAs3S16

Localities:

Lepanto Mine, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Tampakan prospect, South Cotabato Province, Soccsksargen Region, Mindanao, Philippines
Victoria Mine, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Cooperite

Formula: PtS

ⓘ Copper

Formula: Cu

Localities: Reported from at least 12 localities in this region.

ⓘ Covellite

Formula: CuS

Localities: Reported from at least 21 localities in this region.

ⓘ Crocoite

Formula: PbCr6+O4

ⓘ Cubanite

Formula: CuFe2S3

References:

Fournelle, J., Carmody, R., & Daag, A. S. (1996). Anhydrite-bearing pumices from the June 15, 1991, eruption of Mount Pinatubo: geochemistry, mineralogy, and petrology. Fire and Mud: Eruptions and Lahars of Mount Pinatubo, Philippines, 845-862.

ⓘ Cummingtonite

Formula: ◻{Mg2}{Mg5}(Si8O22)(OH)2

References:

Fournelle, J., Carmody, R., & Daag, A. S. (1996). Anhydrite-bearing pumices from the June 15, 1991, eruption of Mount Pinatubo: geochemistry, mineralogy, and petrology. Fire and Mud: Eruptions and Lahars of Mount Pinatubo, Philippines, 845-862.

ⓘ Cuprite

Formula: Cu2O

Localities: Reported from at least 10 localities in this region.

ⓘ Cuproiridsite

Formula: (Cu,Fe)Ir2S4

ⓘ Diaspore

Formula: AlO(OH)

Localities: Reported from at least 6 localities in this region.

ⓘ Dickite

Formula: Al2(Si2O5)(OH)4

Localities: Reported from at least 7 localities in this region.

ⓘ Digenite

Formula: Cu9S5

Localities: Reported from at least 6 localities in this region.

ⓘ Diopside

Formula: CaMgSi2O6

Localities: Reported from at least 8 localities in this region.

ⓘ Diopside var. Salite

References:

Hollings, P., Wolfe, R., Cooke, D. R., & Waters, P. J. (2011). Geochemistry of Tertiary igneous rocks of northern Luzon, Philippines: Evidence for a back-arc setting for alkalic porphyry copper-gold deposits and a case for slab roll-back?. Economic Geology, 106(8), 1257-1277. doi.org/10.2113/econgeo.106.8.1257

ⓘ Djurleite

Formula: Cu31S16

ⓘ Edenite

Formula: NaCa2Mg5(Si7Al)O22(OH)2

References:

Fournelle, J., Carmody, R., & Daag, A. S. (1996). Anhydrite-bearing pumices from the June 15, 1991, eruption of Mount Pinatubo: geochemistry, mineralogy, and petrology. Fire and Mud: Eruptions and Lahars of Mount Pinatubo, Philippines, 845-862.

ⓘ Enargite

Formula: Cu3AsS4

Localities: Reported from at least 15 localities in this region.

ⓘ Enstatite

Formula: Mg2Si2O6

Localities:

Loreto, Dinagat Island, Dinagat Islands Province, Caraga Region, Mindanao, Philippines
Mount Pinatubo, Central Luzon Region, Luzon, Philippines
Intex Laterite Deposit, Occidental Mindoro, Mindoro Island, Mimaropa Region, Luzon, Philippines
Mayon Volcano, Albay Province, Bicol Region, Luzon, Philippines

ⓘ Enstatite var. Bronzite

Formula: (Mg,Fe2+)2[SiO3]2

References:

Fournelle, J., Carmody, R., & Daag, A. S. (1996). Anhydrite-bearing pumices from the June 15, 1991, eruption of Mount Pinatubo: geochemistry, mineralogy, and petrology. Fire and Mud: Eruptions and Lahars of Mount Pinatubo, Philippines, 845-862.

ⓘ Epidote

Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)

Localities: Reported from at least 33 localities in this region.

ⓘ Erlichmanite

Formula: OsS2

ⓘ Famatinite

Formula: Cu3SbS4

Localities:

Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Victoria Mine, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ 'Fayalite-Forsterite Series'

Localities: Reported from at least 8 localities in this region.

ⓘ 'Feldspar Group'

Localities:

Dinkidi Mine, Quirino Province, Cagayan Valley Region, Luzon, Philippines
Palali Intrusive Complex, Luzon, Philippines
Didipio alkalic porphyry deposit, Quirino Province, Cagayan Valley Region, Luzon, Philippines

ⓘ 'Feldspar Group var. Perthite'

ⓘ Ferrosilite

Formula: Fe2+2Si2O6

ⓘ Fluorite

Formula: CaF2

ⓘ Forsterite

Formula: Mg2SiO4

Localities:

Davao gold placer, Davao del Sur Province, Davao Region, Mindanao, Philippines
Intex Laterite Deposit, Occidental Mindoro, Mindoro Island, Mimaropa Region, Luzon, Philippines
Mayon Volcano, Albay Province, Bicol Region, Luzon, Philippines

ⓘ Forsterite var. Peridot

Formula: Mg2SiO4

ⓘ Galena

Formula: PbS

Localities: Reported from at least 30 localities in this region.

ⓘ 'Garnet Group'

Formula: X3Z2(SiO4)3

Localities:

Tongonan geothermal field, Leyte, Samar Island, Eastern Visayas Region, Visayas, Philippines
Atlas Copper District (Toledo), Cebu Island, Cebu Province, Central Visayas Region, Visayas, Philippines
Kennon Southeast Cu-Au deposit (Black Mountain), Baguio, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Guinaobagan Cu deposit, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Tagpura-Maangob Mine, Davao del Norte Province, Davao Region, Mindanao, Philippines

ⓘ 'Garnierite'

Localities: Reported from at least 6 localities in this region.

ⓘ 'Glass'

ⓘ Goethite

Formula: α-Fe3+O(OH)

Localities: Reported from at least 17 localities in this region.

ⓘ Gold

Formula: Au

Localities: Reported from at least 60 localities in this region.

ⓘ Gold var. Electrum

Formula: (Au,Ag)

Localities: Reported from at least 14 localities in this region.

ⓘ Gold var. Mercurian Gold

Formula: (Au,Hg)

ⓘ 'Goldamalgam (of Chen et al.)'

Formula: (Au,Ag)Hg

ⓘ Goldfieldite

Formula: (Cu4◻2)(Cu4Cu+2)Te4S12S

Localities:

Marian Mine, Ifugao Province, Cordillera Administrative Region, Luzon, Philippines
Tirad deposit, Guinaoang, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Victoria Mine, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Graphite

Formula: C

Localities:

Atlas Copper District (Toledo), Cebu Island, Cebu Province, Central Visayas Region, Visayas, Philippines
Dizon Mine, San Marcelino, Zambales Province, Central Luzon Region, Luzon, Philippines
Guinaobagan Cu deposit, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Larap Fe-Cu-Mo-Au deposit, Jose Panganiban, Camarines Norte Province, Bicol Region, Luzon, Philippines
Makangit Cave, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines

ⓘ Greenockite

Formula: CdS

ⓘ Gypsum

Formula: CaSO4 · 2H2O

Localities: Reported from at least 24 localities in this region.

ⓘ Halloysite

Formula: Al2(Si2O5)(OH)4

ⓘ Hastingsite

Formula: NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2

ⓘ Hematite

Formula: Fe2O3

Localities: Reported from at least 39 localities in this region.

ⓘ Hematite var. Specularite

Formula: Fe2O3

Localities: Reported from at least 12 localities in this region.

ⓘ Hessite

Formula: Ag2Te

Localities:

Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Philex-Padcal Mine, Tuba, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Victoria Mine, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Bonanza-Sandy vein system, Teresa, Davao de Oro Province, Davao Region, Mindanao, Philippines
Didipio alkalic porphyry deposit, Quirino Province, Cagayan Valley Region, Luzon, Philippines

ⓘ Heulandite-Ca

Formula: (Ca,Na)5(Si27Al9)O72 · 26H2O

ⓘ 'Heulandite Subgroup'

Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O

References:

Bird, D.K., Schiffman, P., Elders, W.A., Williams, A.E., McDowell, S.D. (1984) Calc-silicate mineralization in active geothermal systems. Economic Geology 79:4, 671-695.

ⓘ Hongshiite

Formula: PtCu

ⓘ 'Hornblende Root Name Group'

Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2

Localities:

Mount Pinatubo, Central Luzon Region, Luzon, Philippines
Philex-Padcal Mine, Tuba, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Taal Volcano, Batangas Province, Calabarzon Region, Luzon, Philippines
Didipio alkalic porphyry deposit, Quirino Province, Cagayan Valley Region, Luzon, Philippines
Baguio, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Hydromagnesite

Formula: Mg5(CO3)4(OH)2 · 4H2O

ⓘ Hydroxylapatite

Formula: Ca5(PO4)3(OH)

References:

Choa, O., Gallet, X., Dizon, E., Ronquillo, W., Jago-on, S. C., Ghaleb, B., ... & Sémah, F (2014). Chronology and palaeoenvironmental significance of Pleistocene deposits in Tabon Cave, Palawan, the Philippines. UISSP Session A26 Southeast Asia: Human Evolution, Dispersals and Adaptation

ⓘ Hydroxylapatite var. Carbonate-rich Hydroxylapatite

Formula: Ca5(PO4,CO3)3(OH,O)

References:

Choa, O., Gallet, X., Dizon, E., Ronquillo, W., Jago-on, S. C., Ghaleb, B., ... & Sémah, F (2014). Chronology and palaeoenvironmental significance of Pleistocene deposits in Tabon Cave, Palawan, the Philippines. UISSP Session A26 Southeast Asia: Human Evolution, Dispersals and Adaptation

ⓘ Idaite

Formula: Cu5FeS6

ⓘ 'Iddingsite'

Formula: MgO · Fe2O3 · 3SiO2 · 4H2O

References:

Miklius, A., Flower, M., Huijsmans, J., Mukasa, S., Castillo, P. (1991) Geochemistry of Lavas from Taal Volcano, Southwestern Luzon, Philippines: Evidence for Multiple Magma Supply Systems and Mantle Source Heterogeneity. Journal of Petrology, 32(3), 593-627.

ⓘ Ilmenite

Formula: Fe2+TiO3

Localities: Reported from at least 7 localities in this region.

ⓘ Irarsite

Formula: (Ir,Ru,Rh,Pt)AsS

ⓘ Iridium

Formula: (Ir,Os,Ru)

ⓘ Iridium var. Osmiridium

Formula: (Ir,Os,Ru)

ⓘ Iron

Formula: Fe

ⓘ Iron var. Kamacite

Formula: (Fe,Ni)

ⓘ Isoferroplatinum

Formula: Pt3Fe

ⓘ Jarosite

Formula: KFe3+3(SO4)2(OH)6

Localities:

Basay Mine (Muhong Mine), Basay, Negros Island, Negros Oriental Province, Negros Island Region, Visayas, Philippines
Hinoba-an prospect, Hinoba-an, Negros Island, Negros Occidental Province, Negros Island Region, Visayas, Philippines
Marcopper Mine (Tapian Mine), Marinduque Island, Marinduque Province, Western Visayas Region, Visayas, Philippines
Dizon Mine, San Marcelino, Zambales Province, Central Luzon Region, Luzon, Philippines
Guinaobagan Cu deposit, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Kaolinite

Formula: Al2(Si2O5)(OH)4

Localities: Reported from at least 29 localities in this region.

ⓘ Kashinite

Formula: Ir2S3

ⓘ Kawazulite

Formula: Bi2Te2Se

ⓘ 'K Feldspar'

Localities: Reported from at least 8 localities in this region.

ⓘ 'K Feldspar var. Adularia'

Formula: KAlSi3O8

Localities:

Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Itogon Suyoc mine, Itagon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Masara Mine, Davao de Oro Province, Davao Region, Mindanao, Philippines
Sirawai deposit, Zamboanga del Norte Province, Zamboanga Peninsula Region, Mindanao, Philippines

ⓘ Kotulskite

Formula: Pd(Te,Bi)2-x (x ≈ 0.4)

ⓘ Laumontite

Formula: CaAl2Si4O12 · 4H2O

ⓘ Laurite

Formula: RuS2

ⓘ Lawrencite

Formula: (Fe2+,Ni)Cl2

Description: One of a number of weathering products found in abundance. However, lawrencite continues to corrode even in relatively dry conditions.

ⓘ Lepidocrocite

Formula: γ-Fe3+O(OH)

ⓘ Leucophosphite

Formula: KFe3+2(PO4)2(OH) · 2H2O

Localities:

Gangub Cave, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines
Makangit Cave, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines
Tabon Caves, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines

ⓘ 'Leucoxene'

ⓘ 'Limonite'

Localities: Reported from at least 16 localities in this region.

ⓘ Linnaeite

Formula: Co2+Co3+2S4

ⓘ Lithiophorite

Formula: (Al,Li)MnO2(OH)2

ⓘ Lizardite

Formula: Mg3(Si2O5)(OH)4

ⓘ Luzonite (TL)

Formula: Cu3AsS4

Localities:

Lepanto Mine, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Far Southeast Cu-Au deposit, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Tampakan prospect, South Cotabato Province, Soccsksargen Region, Mindanao, Philippines
Victoria Mine, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Magnesiochromite

Formula: MgCr2O4

Description: (Originally labelled "chromite", but analysis clearly yields magnesiochromite.

ⓘ Magnetite

Formula: Fe2+Fe3+2O4

Localities: Reported from at least 51 localities in this region.

ⓘ Magnetite var. Titanium-bearing Magnetite

Formula: Fe2+(Fe3+,Ti)2O4

References:

Miklius, A., Flower, M., Huijsmans, J., Mukasa, S., Castillo, P. (1991) Geochemistry of Lavas from Taal Volcano, Southwestern Luzon, Philippines: Evidence for Multiple Magma Supply Systems and Mantle Source Heterogeneity. Journal of Petrology, 32(3), 593-627.

ⓘ Malachite

Formula: Cu2(CO3)(OH)2

Localities: Reported from at least 32 localities in this region.

ⓘ Marcasite

Formula: FeS2

Localities: Reported from at least 6 localities in this region.

ⓘ 'Melnikovite'

ⓘ Melonite

Formula: NiTe2

ⓘ Mercury

Formula: Hg

ⓘ Merenskyite

Formula: PdTe2

ⓘ Merrillite

Formula: Ca9NaMg(PO4)7

ⓘ Mertieite

Formula: Pd8Sb2.5As0.5

ⓘ 'Mica Group'

ⓘ 'Microlite Group'

Formula: A2-mTa2X6-wZ-n

ⓘ Mitridatite

Formula: Ca2Fe3+3(PO4)3O2 · 3H2O

ⓘ Molybdenite

Formula: MoS2

Localities: Reported from at least 35 localities in this region.

ⓘ Moncheite

Formula: Pt(Te,Bi)2

Localities:

Philex-Padcal Mine, Tuba, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Acoje Mine, Santa Cruz, Zambales Province, Central Luzon Region, Luzon, Philippines

ⓘ Montmorillonite

Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O

Localities: Reported from at least 7 localities in this region.

ⓘ Mordenite

Formula: (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O

ⓘ Muscovite

Formula: KAl2(AlSi3O10)(OH)2

Localities: Reported from at least 46 localities in this region.

ⓘ Muscovite var. Illite

Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2

Localities: Reported from at least 12 localities in this region.

ⓘ Muscovite var. Sericite

Formula: KAl2(AlSi3O10)(OH)2

Localities: Reported from at least 42 localities in this region.

ⓘ Nekrasovite

Formula: Cu26V2(Sn,As,Sb)6S32

ⓘ Neotocite

Formula: (Mn,Fe)SiO3 · H2O (?)

Localities:

Balak No. 5 Mine, Jetafe, Bohol Island, Bohol Province, Central Visayas Region, Visayas, Philippines
Aya Aya Cu deposit, Olandao Brgy, Basay, Negros Island, Negros Oriental Province, Negros Island Region, Visayas, Philippines

ⓘ Nepheline

Formula: Na3K(Al4Si4O16)

ⓘ Niter

Formula: KNO3

ⓘ Nsutite

Formula: (Mn4+,Mn2+)(O,OH)2

ⓘ 'Olivine Group'

Formula: M2SiO4

Localities:

Sta. Cruz nickel laterite, Santa Cruz, Zambales Province, Central Luzon Region, Luzon, Philippines
Mount Pinatubo, Central Luzon Region, Luzon, Philippines
Mayon Volcano, Albay Province, Bicol Region, Luzon, Philippines

ⓘ Orthoclase

Formula: K(AlSi3O8)

References:

Hermo, M. I., Balangue-Tarriela, M. I. R., Takahashi, R., Gabo-Ratio, J. A., & Frias, S. M. (2022). Mineralization styles and ore-forming conditions of the quartz-fragment-rich breccia (QBX) at the Didipio alkalic porphyry Cu-Au deposit, Nueva Vizcaya, Philippines. Ore Geology Reviews, 104724.

ⓘ 'Orthopyroxene Subgroup'

Localities: Reported from at least 8 localities in this region.

ⓘ Osmium

Formula: (Os,Ir,Ru)

ⓘ Pargasite

Formula: NaCa2(Mg4Al)(Si6Al2)O22(OH)2

Localities:

Mount Pinatubo, Central Luzon Region, Luzon, Philippines
Baguio, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Mayon Volcano, Albay Province, Bicol Region, Luzon, Philippines

ⓘ 'Pearl'

ⓘ Pentlandite

Formula: (NixFey)Σ9S8

Localities:

Acoje Mine, Santa Cruz, Zambales Province, Central Luzon Region, Luzon, Philippines
Loreto, Dinagat Island, Dinagat Islands Province, Caraga Region, Mindanao, Philippines
Llorente river, Samar Island, Eastern Visayas Region, Visayas, Philippines
Mount Pinatubo, Central Luzon Region, Luzon, Philippines

ⓘ Petzite

Formula: Ag3AuTe2

Localities:

Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Philex-Padcal Mine, Tuba, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Llorente river, Samar Island, Eastern Visayas Region, Visayas, Philippines
Victoria Mine, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Bonanza-Sandy vein system, Teresa, Davao de Oro Province, Davao Region, Mindanao, Philippines

ⓘ Phlogopite

Formula: KMg3(AlSi3O10)(OH)2

Localities:

Basay Mine (Muhong Mine), Basay, Negros Island, Negros Oriental Province, Negros Island Region, Visayas, Philippines
Larap Fe-Cu-Mo-Au deposit, Jose Panganiban, Camarines Norte Province, Bicol Region, Luzon, Philippines
Cordon Intrusive Complex, Luzon, Philippines
Palali Intrusive Complex, Luzon, Philippines

ⓘ Pigeonite

Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6

References:

Miklius, A., Flower, M., Huijsmans, J., Mukasa, S., Castillo, P. (1991) Geochemistry of Lavas from Taal Volcano, Southwestern Luzon, Philippines: Evidence for Multiple Magma Supply Systems and Mantle Source Heterogeneity. Journal of Petrology, 32(3), 593-627.

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi2]O8

Localities: Reported from at least 10 localities in this region.

ⓘ Platinum

Formula: Pt

Localities:

Acoje Mine, Santa Cruz, Zambales Province, Central Luzon Region, Luzon, Philippines
Davao gold placer, Davao del Sur Province, Davao Region, Mindanao, Philippines
Llorente river, Samar Island, Eastern Visayas Region, Visayas, Philippines

ⓘ Prehnite

Formula: Ca2Al2Si3O10(OH)2

References:

Bird, D.K., Schiffman, P., Elders, W.A., Williams, A.E., McDowell, S.D. (1984) Calc-silicate mineralization in active geothermal systems. Economic Geology 79:4, 671-695.

ⓘ Proustite

Formula: Ag3AsS3

Localities:

Lepanto Mine, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ 'Pseudoleucite'

ⓘ Pyrargyrite

Formula: Ag3SbS3

ⓘ Pyrite

Formula: FeS2

Localities: Reported from at least 76 localities in this region.

ⓘ Pyrite var. Bravoite

Formula: (Fe,Ni)S2

ⓘ Pyrophyllite

Formula: Al2Si4O10(OH)2

Localities: Reported from at least 8 localities in this region.

ⓘ 'Pyroxene Group'

Formula: ADSi2O6

Localities: Reported from at least 6 localities in this region.

ⓘ Pyrrhotite

Formula: Fe1-xS

Localities: Reported from at least 7 localities in this region.

ⓘ Quartz

Formula: SiO2

Localities: Reported from at least 42 localities in this region.

ⓘ Quartz var. Chalcedony

Formula: SiO2

Localities:

Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Co-O Mine, Rosario-Bunawan District, Agusan del Sur Province, Caraga Region, Mindanao, Philippines
Palawan Mine, Puerto Princesa, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines

ⓘ Quartz var. Plasma

Formula: SiO2

ⓘ Rhodochrosite

Formula: MnCO3

Localities:

Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Bonanza-Sandy vein system, Teresa, Davao de Oro Province, Davao Region, Mindanao, Philippines
Sirawai deposit, Zamboanga del Norte Province, Zamboanga Peninsula Region, Mindanao, Philippines

ⓘ Rhodonite

Formula: CaMn3Mn[Si5O15]

Localities:

Baguio Mine, Baguio, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Antamok Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Ruarsite

Formula: (Ru,Os)AsS

ⓘ Ruthenium

Formula: (Ru,Ir)

ⓘ Rutile

Formula: TiO2

Localities: Reported from at least 6 localities in this region.

ⓘ 'Scapolite'

ⓘ Scheelite

Formula: Ca(WO4)

ⓘ Schreibersite

Formula: (Fe,Ni)3P

ⓘ 'Serpentine Subgroup'

Formula: D3[Si2O5](OH)4

Localities: Reported from at least 12 localities in this region.

ⓘ 'Silica'

Description: Most likely tridymite.

ⓘ Silver

Formula: Ag

Localities: Reported from at least 9 localities in this region.

ⓘ 'Smectite Group'

Formula: A0.3D2-3[T4O10]Z2 · nH2O

Localities:

Dinkidi Mine, Quirino Province, Cagayan Valley Region, Luzon, Philippines
San Fabian Mine, Nueva Vizcaya Province, Cagayan Valley Region, Luzon, Philippines
Tampakan prospect, South Cotabato Province, Soccsksargen Region, Mindanao, Philippines
Nara, Palawan ophiolite, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines
Sirawai deposit, Zamboanga del Norte Province, Zamboanga Peninsula Region, Mindanao, Philippines

ⓘ Sopcheite

Formula: Ag4Pd3Te4

ⓘ Sperrylite

Formula: PtAs2

ⓘ Sphalerite

Formula: ZnS

Localities: Reported from at least 36 localities in this region.

ⓘ Spheniscidite

Formula: (NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O

Localities:

Gangub Cave, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines
Makangit Cave, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines
Tabon Caves, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines

ⓘ Spinel

Formula: MgAl2O4

Localities:

Infanta Nickel Area, Brooke's Point, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines
Mayon Volcano, Albay Province, Bicol Region, Luzon, Philippines

ⓘ Stannoidite

Formula: Cu+6Cu2+2(Fe2+,Zn)3Sn2S12

References:

Anthony, John Williams, Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. (1990) Handbook of Mineralogy Vol. 1 - Elements, Sulfides, Sulfosalts. Mineral Data Publishing, Tucson, Arizona.

ⓘ Stephanite

Formula: Ag5SbS4

ⓘ Stibiopalladinite

Formula: Pd5Sb2

ⓘ Stibnite

Formula: Sb2S3

Localities:

Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Dizon Mine, San Marcelino, Zambales Province, Central Luzon Region, Luzon, Philippines
Balatoc Diatreme, Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ 'Stilbite Subgroup'

Formula: M6-7[Al8-9Si27-28O72] · nH2O

References:

Hermo, M. I., Balangue-Tarriela, M. I. R., Takahashi, R., Gabo-Ratio, J. A., & Frias, S. M. (2022). Mineralization styles and ore-forming conditions of the quartz-fragment-rich breccia (QBX) at the Didipio alkalic porphyry Cu-Au deposit, Nueva Vizcaya, Philippines. Ore Geology Reviews, 104724.

ⓘ Stützite

Formula: Ag5-xTe3, x = 0.24-0.36

ⓘ Sulphur

Formula: S8

Localities:

Guinaobagan Cu deposit, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Far Southeast Cu-Au deposit, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Mount Apo (Bundok Apo), Davao del Sur Province, Davao Region, Mindanao, Philippines

ⓘ Sylvanite

Formula: AgAuTe4

Localities:

Acupan Mine, Itogon, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Victoria Mine, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Taenite

Formula: (Fe,Ni)

ⓘ Talc

Formula: Mg3Si4O10(OH)2

Localities:

Intex Laterite Deposit, Occidental Mindoro, Mindoro Island, Mimaropa Region, Luzon, Philippines
Berong deposit, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines
Palawan ophiolite, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines
Sta. Cruz nickel laterite, Santa Cruz, Zambales Province, Central Luzon Region, Luzon, Philippines
Nara, Palawan ophiolite, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines

ⓘ Taranakite

Formula: (K,NH4)Al3(PO4)3(OH) · 9H2O

Localities:

Gangub Cave, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines
Makangit Cave, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines

ⓘ 'Tektite var. Bikolite'

ⓘ 'Tektite var. Philippinite'

ⓘ Tellurium

Formula: Te

ⓘ Tellurobismuthite

Formula: Bi2Te3

ⓘ 'Tennantite Subgroup'

Formula: Cu6(Cu4C2+2)As4S12S

Localities:

Guinaobagan Cu deposit, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Far Southeast Cu-Au deposit, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Tampakan prospect, South Cotabato Province, Soccsksargen Region, Mindanao, Philippines
Didipio alkalic porphyry deposit, Quirino Province, Cagayan Valley Region, Luzon, Philippines

ⓘ 'Tennantite-Tetrahedrite Series'

Localities:

Lepanto Mine, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Lumbay prospect, Rizal Province, Southern Tagalog Region, Luzon, Philippines
Jose Panganiban, Camarines Norte Province, Bicol Region, Luzon, Philippines
Philex-Padcal Mine, Tuba, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Tenorite

Formula: CuO

Localities:

Ino-Capayang Cu deposit, Marinduque Island, Marinduque Province, Western Visayas Region, Visayas, Philippines
Marcopper Mine (Tapian Mine), Marinduque Island, Marinduque Province, Western Visayas Region, Visayas, Philippines

ⓘ Tetra-auricupride

Formula: AuCu

ⓘ Tetradymite

Formula: Bi2Te2S

ⓘ Tetraferroplatinum

Formula: PtFe

ⓘ 'Tetrahedrite Subgroup'

Formula: Cu6(Cu4C2+2)Sb4S12S

Localities: Reported from at least 13 localities in this region.

ⓘ Thomsonite-Ca

Formula: NaCa2[Al5Si5O20] · 6H2O

ⓘ Titanite

Formula: CaTi(SiO4)O

Localities:

Tongonan geothermal field, Leyte, Samar Island, Eastern Visayas Region, Visayas, Philippines
Dinkidi Mine, Quirino Province, Cagayan Valley Region, Luzon, Philippines
Mount Pinatubo, Central Luzon Region, Luzon, Philippines
Palali Intrusive Complex, Luzon, Philippines
Didipio alkalic porphyry deposit, Quirino Province, Cagayan Valley Region, Luzon, Philippines

ⓘ Tobermorite

Formula: Ca4Si6O17(H2O)2 · (Ca · 3H2O)

Localities:

Palawan ophiolite, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines
Nara, Palawan ophiolite, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines

ⓘ 'Tourmaline'

Formula: A D3G6 (T6O18)(BO3)3X3Z

Localities:

Balak No. 5 Mine, Jetafe, Bohol Island, Bohol Province, Central Visayas Region, Visayas, Philippines
Dizon Mine, San Marcelino, Zambales Province, Central Luzon Region, Luzon, Philippines
Far Southeast Cu-Au deposit, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Tawi-Tawi Cu deposit, Bokod, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Tremolite

Formula: ◻Ca2Mg5(Si8O22)(OH)2

Localities:

Larap Fe-Cu-Mo-Au deposit, Jose Panganiban, Camarines Norte Province, Bicol Region, Luzon, Philippines
Sta. Cruz nickel laterite, Santa Cruz, Zambales Province, Central Luzon Region, Luzon, Philippines

ⓘ Tridymite

Formula: SiO2

ⓘ Troilite

Formula: FeS

Localities:

Acoje Mine, Santa Cruz, Zambales Province, Central Luzon Region, Luzon, Philippines
Bondoc meteorite, Quezon province, Calabarzon Region, Luzon, Philippines
Pantar meteorite, Pantar, Lanao, Central Mindanao, Mindanao, Philippines

ⓘ Tschermakite

Formula: ◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2

References:

Cao, M., Evans, N. J., Hollings, P., Cooke, D. R., McInnes, B. I., Qin, K., & Li, G. (2018). Phenocryst zonation in porphyry-related rocks of the Baguio district, Philippines: Evidence for magmatic and metallogenic processes. Journal of Petrology, 59(5), 825-848.

ⓘ Tulameenite

Formula: Pt2CuFe

ⓘ Ulvöspinel

Formula: TiFe2+2O4

ⓘ 'UM1994-21-S:AgTe'

Formula: Ag3TeS

ⓘ 'Unnamed (Au2Hg)'

Formula: Au2Hg

ⓘ Uraninite

Formula: UO2

Localities:

Matanlang Cu-Au deposit, Paracale, Camarines Norte Province, Bicol Region, Luzon, Philippines
Larap Fe-Cu-Mo-Au deposit, Jose Panganiban, Camarines Norte Province, Bicol Region, Luzon, Philippines

ⓘ Uraninite var. Pitchblende

Formula: UO2

Localities:

Matanlang Cu-Au deposit, Paracale, Camarines Norte Province, Bicol Region, Luzon, Philippines
Larap Fe-Cu-Mo-Au deposit, Jose Panganiban, Camarines Norte Province, Bicol Region, Luzon, Philippines

ⓘ Uvarovite

Formula: Ca3Cr2(SiO4)3

ⓘ Variscite

Formula: AlPO4 · 2H2O

Localities:

Gangub Cave, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines
Makangit Cave, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines
Tabon Caves, Palawan Island, Palawan Province, Western Visayas Region, Visayas, Philippines

ⓘ Vesuvianite

Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9

References:

Bird, D.K., Schiffman, P., Elders, W.A., Williams, A.E., McDowell, S.D. (1984) Calc-silicate mineralization in active geothermal systems. Economic Geology 79:4, 671-695.

ⓘ Violarite

Formula: Fe2+Ni3+2S4

ⓘ Vysotskite

Formula: PdS

ⓘ 'Wad'

ⓘ Wairakite

Formula: Ca(Al2Si4O12) · 2H2O

References:

Bird, D.K., Schiffman, P., Elders, W.A., Williams, A.E., McDowell, S.D. (1984) Calc-silicate mineralization in active geothermal systems. Economic Geology 79:4, 671-695.

ⓘ Wavellite

Formula: Al3(PO4)2(OH,F)3 · 5H2O

ⓘ Whitlockite

Formula: Ca9Mg(PO4)6(PO3OH)

ⓘ Wittichenite

Formula: Cu3BiS3

References:

Hermo, M. I., Balangue-Tarriela, M. I. R., Takahashi, R., Gabo-Ratio, J. A., & Frias, S. M. (2022). Mineralization styles and ore-forming conditions of the quartz-fragment-rich breccia (QBX) at the Didipio alkalic porphyry Cu-Au deposit, Nueva Vizcaya, Philippines. Ore Geology Reviews, 104724.

ⓘ 'Wolframite Group'

ⓘ Wollastonite

Formula: Ca3(Si3O9)

ⓘ Woodhouseite

Formula: CaAl3(PO4)(SO4)(OH)6

References:

Manalo, P., Takahashi, R., Imai, A., Parcon-Calamohoy, R. R., de los Santos, M., Subang, L., & Alburo, G. C. (2022). Heterogeneity of mineral chemistry and sulfur isotopic composition of alunite in the Mankayan lithocap, northern Luzon, Philippines. Ore Geology Reviews, 146, 104959.

ⓘ 'Zeolite Group'

Localities:

Atlas Copper District (Toledo), Cebu Island, Cebu Province, Central Visayas Region, Visayas, Philippines
Basay Mine (Muhong Mine), Basay, Negros Island, Negros Oriental Province, Negros Island Region, Visayas, Philippines
Dinkidi Mine, Quirino Province, Cagayan Valley Region, Luzon, Philippines
Guinaobagan Cu deposit, Mankayan, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Zircon

Formula: Zr(SiO4)

Localities:

Davao gold placer, Davao del Sur Province, Davao Region, Mindanao, Philippines
Mount Pinatubo, Central Luzon Region, Luzon, Philippines
Philex-Padcal Mine, Tuba, Benguet Province, Cordillera Administrative Region, Luzon, Philippines
Baguio, Benguet Province, Cordillera Administrative Region, Luzon, Philippines

ⓘ Zunyite

Formula: Al13Si5O20(OH,F)18Cl