Mashonaland West, Zimbabwe (original) (raw)

ⓘ Actinolite

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

References:

Chusi Li, Ripley, E.M., Oberthür, T., Miller, Jr., J.D., and Joslin, G.D. (2008): Mineralium Deposita 43, 97-110.

ⓘ Albite

Formula: Na(AlSi3O8)

Localities:

Hartley Mine, Chegutu District, Mashonaland West, Zimbabwe
St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe
Mterikati pegmatite, Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe

ⓘ Alluaudite

Formula: (Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3

References:

Anthony, John Williams, Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. (2000) Handbook of Mineralogy Vol. 4 - Arsenates, phosphates, vanadates. Mineral Data Publishing, Tucson, Arizona.

ⓘ Almandine

Formula: Fe2+3Al2(SiO4)3

ⓘ Altaite

Formula: PbTe

ⓘ 'Amblygonite-Montebrasite Series'

ⓘ Andalusite

Formula: Al2(SiO4)O

Description: Large crystals up to 5cm diameter.

ⓘ Andalusite var. Chiastolite

Formula: Al2(SiO4)O

Description: Occur as large crystals up to 5cm.

ⓘ Anhydrite

Formula: CaSO4

ⓘ Ankerite

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

References:

Chusi Li, Ripley, E.M., Oberthür, T., Miller, Jr., J.D., and Joslin, G.D. (2008): Mineralium Deposita 43, 97-110.

ⓘ Anorthite

Formula: Ca(Al2Si2O8)

ⓘ Antigorite

Formula: Mg3(Si2O5)(OH)4

ⓘ 'Apatite'

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

ⓘ Aragonite

Formula: CaCO3

Localities:

Mangula Mine, Mhangura, Makonde District, Mashonaland West, Zimbabwe
Ethel Mine, Mutorashanga, Zvimba District, Mashonaland West, Zimbabwe
Chinhoyi Caves, Chinhoyi, Makonde District, Mashonaland West, Zimbabwe

ⓘ Argentopentlandite

Formula: Ag(Fe,Ni)8S8

ⓘ Arrojadite-(KFe)

Formula: (KNa)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2

ⓘ Arsenopyrite

Formula: FeAsS

ⓘ Atokite

Formula: (Pd,Pt)3Sn

ⓘ Azurite

Formula: Cu3(CO3)2(OH)2

Localities:

Copper Duke Mine, Kadoma District, Mashonaland West, Zimbabwe
Makonde District, Mashonaland West, Zimbabwe
Leonada Mine, Kadoma District, Mashonaland West, Zimbabwe
Montana Mine, Karoi District, Mashonaland West, Zimbabwe

ⓘ Beryl

Formula: Be3Al2(Si6O18)

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

Description: Gem quality.

ⓘ Beryl var. Aquamarine

Formula: Be3Al2Si6O18

Localities:

St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe
Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe
Dungusha pegmatite, Karoi District, Mashonaland West, Zimbabwe
Rattis Mine, Karoi District, Mashonaland West, Zimbabwe
Lynx Mine, Lynx, Karoi District, Mashonaland West, Zimbabwe

Description: Gem quality.

ⓘ Beryl var. Emerald

Formula: Be3Al2(Si6O18)

ⓘ Beryl var. Goshenite

Formula: Be3Al2(Si6O18)

ⓘ Beryl var. Heliodor

Formula: Be3Al2(Si6O18)

Localities:

Karoi District, Mashonaland West, Zimbabwe
Green Walking Stick deposit, Karoi District, Mashonaland West, Zimbabwe
Bul Bul claim, Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe
Baboon Hill claim, Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe

ⓘ 'Biotite'

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

ⓘ Bixbyite-(Mn)

Formula: Mn3+2O3

ⓘ Bornite

Formula: Cu5FeS4

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

Description: World famous mine for bornite crystals as they do not commonly form well-shaped large crystals whereas this mine has superb large euhedral crystals over 2cm diameter, but not plentiful.

ⓘ Braggite

Formula: PdPt3S4

References:

Stribrny, B., Wellmer, F.-W., Burgath, K.-P., Oberthür, T., Tarkian, M., and Pfeiffer, T. (2000): Mineralium Deposita 35, 260-281.

Chusi Li, Ripley, E.M., Oberthür, T., Miller, Jr., J.D., and Joslin, G.D. (2008): Mineralium Deposita 43, 97-110.

Oberthür, T., Melcher, F., Buchholz, P., & Locmelis, M. (2013). The oxidized ores of the Main Sulphide Zone, Great Dyke, Zimbabwe: turning resources into minable reserves-mineralogy is the key. Journal of the Southern African Institute of Mining and Metallurgy, 113(3), 00-00.

ⓘ Brazilianite

Formula: NaAl3(PO4)2(OH)4

ⓘ Brucite

Formula: Mg(OH)2

Habit: broad-tabular ?

Colour: sea-green

Description: Beautiful clusters of sea green crystals up to 4cm long.

ⓘ Calcite

Formula: CaCO3

ⓘ Cassiterite

Formula: SnO2

ⓘ Chalcocite

Formula: Cu2S

Localities:

Avondale Mine, Makonde District, Mashonaland West, Zimbabwe
Alaska Mine (incl. Hans Mine; Angwa Mine), Makonde District, Mashonaland West, Zimbabwe
Mangula Mine, Mhangura, Makonde District, Mashonaland West, Zimbabwe
Miriam Mine (Norah Mine), Mhangura, Makonde District, Mashonaland West, Zimbabwe
Shackleton Mine, Makonde District, Mashonaland West, Zimbabwe

ⓘ Chalcopyrite

Formula: CuFeS2

Localities: Reported from at least 11 localities in this region.

ⓘ 'Chlorite Group'

ⓘ Chromite

Formula: Fe2+Cr3+2O4

ⓘ Chrysoberyl

Formula: BeAl2O4

Description: Mined from pegmatites in this area.

ⓘ Chrysocolla

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

Localities:

Leonada Mine, Kadoma District, Mashonaland West, Zimbabwe
Montana Mine, Karoi District, Mashonaland West, Zimbabwe
Anna Mine, Makonde District, Mashonaland West, Zimbabwe
Ethel Mine, Mutorashanga, Zvimba District, Mashonaland West, Zimbabwe

Description: Associated with azurite, dioptase and malachite

ⓘ Cinnabar

Formula: HgS

Description: Found as scattered grains in quartz-carbonate veins at Richmond.

ⓘ Cobaltite

Formula: CoAsS

ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series'

Localities:

Rita, Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe
Lillington claim, Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe
Bufroi claim, Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe

ⓘ Cooperite

Formula: PtS

References:

Stribrny, B., Wellmer, F.-W., Burgath, K.-P., Oberthür, T., Tarkian, M., and Pfeiffer, T. (2000): Mineralium Deposita 35, 260-281.

Chusi Li, Ripley, E.M., Oberthür, T., Miller, Jr., J.D., and Joslin, G.D. (2008): Mineralium Deposita 43, 97-110.

ⓘ Copper

Formula: Cu

Localities:

Alaska Mine (incl. Hans Mine; Angwa Mine), Makonde District, Mashonaland West, Zimbabwe
Mangula Mine, Mhangura, Makonde District, Mashonaland West, Zimbabwe
Silverside copper-silver deposit (incl. Old Hat Mine; Manchester Mine; Shebaside Mine), Makonde District, Mashonaland West, Zimbabwe

ⓘ Cordierite

Formula: (Mg,Fe)2Al3(AlSi5O18)

Localities:

Makuti, Makuti area, Karoi District, Mashonaland West, Zimbabwe
Makuti area, Karoi District, Mashonaland West, Zimbabwe
Magondi belt, Karoi District, Mashonaland West, Zimbabwe

ⓘ Corundum

Formula: Al2O3

ⓘ Covellite

Formula: CuS

ⓘ Cubanite

Formula: CuFe2S3

ⓘ Cuproiridsite

Formula: (Cu,Fe)Ir2S4

References:

Oberthür, T., Weiser, T. W., Melcher, F., Gast, L., & Wöhrl, C. (2013). Detrital platinum-group minerals in rivers draining the Great Dyke, Zimbabwe. The Canadian Mineralogist, 51(2), 197-222.

ⓘ Digenite

Formula: Cu9S5

ⓘ Dioptase

Formula: CuSiO3 · H2O

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

Description: Associated with azurite, chrysocolla and malachite

ⓘ Dravite

Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)

ⓘ Dumortierite

Formula: Al(Al2O)(Al2O)2(SiO4)3(BO3)

ⓘ Elbaite

Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)

Colour: Green

ⓘ Empressite

Formula: AgTe

ⓘ Epidote

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

ⓘ Euclase

Formula: BeAl(SiO4)(OH)

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

Habit: Prismatic, can be long or short and stubby.

Colour: Dark indigo or cobalt blue to peacock blue.

Description: Premier localaity for transparent crystals found in a 2.5 metre wide pegmatite together with Beryl.

ⓘ 'Feldspar Group'

ⓘ Fluorapatite

Formula: Ca5(PO4)3F

Localities:

Turning Point claims, Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe
Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe
Pope Mine, Karoi District, Mashonaland West, Zimbabwe
Karoi District, Mashonaland West, Zimbabwe

ⓘ 'Fluor-uvite-Uvite Series'

ⓘ Galena

Formula: PbS

ⓘ 'Garnet Group'

Formula: X3Z2(SiO4)3

ⓘ Gedrite

Formula: ◻{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2

ⓘ Gersdorffite

Formula: NiAsS

ⓘ Goethite

Formula: α-Fe3+O(OH)

ⓘ Gold

Formula: Au

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

ⓘ Gold var. Electrum

Formula: (Au,Ag)

ⓘ Graftonite

Formula: Fe2+Fe2+2(PO4)2

ⓘ Grandidierite

Formula: (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2

ⓘ Graphite

Formula: C

ⓘ Hematite

Formula: Fe2O3

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

ⓘ Hercynite

Formula: Fe2+Al2O4

ⓘ Hessite

Formula: Ag2Te

ⓘ Hollingworthite

Formula: (Rh,Pt,Pd)AsS

ⓘ Hydromagnesite

Formula: Mg5(CO3)4(OH)2 · 4H2O

ⓘ Ilmenite

Formula: Fe2+TiO3

ⓘ Irarsite

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

ⓘ Kaolinite

Formula: Al2(Si2O5)(OH)4

ⓘ Kornerupine

Formula: Mg3Al6(Si,Al,B)5O21(OH)

ⓘ Kotulskite

Formula: Pd(Te,Bi)2-x (x ≈ 0.4)

ⓘ Kyanite

Formula: Al2(SiO4)O

ⓘ Laurite

Formula: RuS2

ⓘ Lazulite

Formula: MgAl2(PO4)2(OH)2

ⓘ 'Limonite'

References:

Stribrny, B., Wellmer, F.-W., Burgath, K.-P., Oberthür, T., Tarkian, M., and Pfeiffer, T. (2000): Mineralium Deposita 35, 260-281.

ⓘ Loveringite

Formula: (Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38

References:

Stribrny, B., Wellmer, F.-W., Burgath, K.-P., Oberthür, T., Tarkian, M., and Pfeiffer, T. (2000): Mineralium Deposita 35, 260-281.

ⓘ Mackinawite

Formula: FeS

ⓘ Magnesite

Formula: MgCO3

Description: The largest deposit comes from Barton Farm, found in volcano-sedimentary rocks and lavas, is thought to form from magnesium alteration of dolomites. Often polished & marketed as Howlite (Debbie Woolf personal comment).

ⓘ Magnetite

Formula: Fe2+Fe3+2O4

Localities:

Hartley Mine, Chegutu District, Mashonaland West, Zimbabwe
Perseverance mine, Kadoma District, Mashonaland West, Zimbabwe
Magondi belt, Karoi District, Mashonaland West, Zimbabwe
Bay Horse Mine, Chegutu District, Mashonaland West, Zimbabwe

ⓘ Malachite

Formula: Cu2(CO3)(OH)2

Localities:

Copper Duke Mine, Kadoma District, Mashonaland West, Zimbabwe
Leonada Mine, Kadoma District, Mashonaland West, Zimbabwe
Montana Mine, Karoi District, Mashonaland West, Zimbabwe
Bay Horse Mine, Chegutu District, Mashonaland West, Zimbabwe

ⓘ Marcasite

Formula: FeS2

ⓘ Maslovite

Formula: PtBiTe

ⓘ 'Maufite'

ⓘ Melonite

Formula: NiTe2

ⓘ Merenskyite

Formula: PdTe2

References:

Chusi Li, Ripley, E.M., Oberthür, T., Miller, Jr., J.D., and Joslin, G.D. (2008): Mineralium Deposita 43, 97-110.

ⓘ 'Mica Group'

ⓘ Michenerite

Formula: PdBiTe

ⓘ Microcline

Formula: K(AlSi3O8)

ⓘ Molybdenite

Formula: MoS2

ⓘ 'Monazite Group'

Formula: REE(PO4)

ⓘ Moncheite

Formula: Pt(Te,Bi)2

References:

Chusi Li, Ripley, E.M., Oberthür, T., Miller, Jr., J.D., and Joslin, G.D. (2008): Mineralium Deposita 43, 97-110.

Oberthür, T., Melcher, F., Buchholz, P., & Locmelis, M. (2013). The oxidized ores of the Main Sulphide Zone, Great Dyke, Zimbabwe: turning resources into minable reserves-mineralogy is the key. Journal of the Southern African Institute of Mining and Metallurgy, 113(3), 00-00.

ⓘ Muscovite

Formula: KAl2(AlSi3O10)(OH)2

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

ⓘ Nontronite

Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O

References:

Oberthür, T., Melcher, F., Buchholz, P., & Locmelis, M. (2013). The oxidized ores of the Main Sulphide Zone, Great Dyke, Zimbabwe: turning resources into minable reserves-mineralogy is the key. Journal of the Southern African Institute of Mining and Metallurgy, 113(3), 00-00.

ⓘ Orthoclase

Formula: K(AlSi3O8)

ⓘ Palladodymite

Formula: (Pd,Rh)2As

References:

Oberthür, T., Weiser, T. W., Melcher, F., Gast, L., & Wöhrl, C. (2013). Detrital platinum-group minerals in rivers draining the Great Dyke, Zimbabwe. The Canadian Mineralogist, 51(2), 197-222.

ⓘ Pentlandite

Formula: (NixFey)Σ9S8

ⓘ Phlogopite

Formula: KMg3(AlSi3O10)(OH)2

References:

Chusi Li, Ripley, E.M., Oberthür, T., Miller, Jr., J.D., and Joslin, G.D. (2008): Mineralium Deposita 43, 97-110.

ⓘ 'Plagioclase'

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

References:

Chusi Li, Ripley, E.M., Oberthür, T., Miller, Jr., J.D., and Joslin, G.D. (2008): Mineralium Deposita 43, 97-110.

ⓘ Platinum

Formula: Pt

ⓘ 'Platinum-Group Elements'

ⓘ 'Polylithionite-Trilithionite Series'

ⓘ Prismatine

Formula: (◻,Fe,Mg)(Mg,Al,Fe)5Al4Si2(Si,Al)2(B,Si,Al)(O,OH,F)22

ⓘ 'Psilomelane'

ⓘ Pyrite

Formula: FeS2

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

ⓘ Pyrrhotite

Formula: Fe1-xS

Localities:

Hartley Mine, Chegutu District, Mashonaland West, Zimbabwe
Elvington gold mine (Lone Star), Chegutu District, Mashonaland West, Zimbabwe
Pickstone–Peerless Mine, Chegutu District, Mashonaland West, Zimbabwe
Perseverance mine, Kadoma District, Mashonaland West, Zimbabwe
Bay Horse Mine, Chegutu District, Mashonaland West, Zimbabwe

ⓘ Quartz

Formula: SiO2

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

ⓘ Quartz var. Amethyst

Formula: SiO2

ⓘ Quartz var. Chrome-Chalcedony

Formula: SiO2

ⓘ Quartz var. Rock Crystal

Formula: SiO2

ⓘ Quartz var. Smoky Quartz

Formula: SiO2

ⓘ Rucklidgeite

Formula: PbBi2Te4

ⓘ Rustenburgite

Formula: (Pt,Pd)3Sn

ⓘ Rutile

Formula: TiO2

ⓘ Scheelite

Formula: Ca(WO4)

ⓘ Schorl

Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

ⓘ Siderite

Formula: FeCO3

ⓘ Sillimanite

Formula: Al2(SiO4)O

ⓘ Silver

Formula: Ag

ⓘ 'Smectite Group'

Formula: A0.3D2-3[T4O10]Z2 · nH2O

References:

Stribrny, B., Wellmer, F.-W., Burgath, K.-P., Oberthür, T., Tarkian, M., and Pfeiffer, T. (2000): Mineralium Deposita 35, 260-281.

ⓘ Smythite

Formula: (Fe,Ni)3+xS4 (x=0-0.3)

ⓘ Sobolevskite

Formula: PdBi

ⓘ Sodalite

Formula: Na4(Si3Al3)O12Cl

ⓘ Sperrylite

Formula: PtAs2

ⓘ Sperrylite var. Platarsite

Formula: Pt(As,S)2

ⓘ Sphalerite

Formula: ZnS

ⓘ Spinel

Formula: MgAl2O4

ⓘ Stibiopalladinite

Formula: Pd5Sb2

ⓘ Stibnite

Formula: Sb2S3

ⓘ Strengite

Formula: FePO4 · 2H2O

ⓘ Talc

Formula: Mg3Si4O10(OH)2

ⓘ 'Tantalite'

Formula: (Mn,Fe)(Ta,Nb)2O6

ⓘ Tellurobismuthite

Formula: Bi2Te3

ⓘ Topaz

Formula: Al2(SiO4)(F,OH)2

Localities:

St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe
Pope Mine, Karoi District, Mashonaland West, Zimbabwe
Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe
Dungusha pegmatite, Karoi District, Mashonaland West, Zimbabwe

ⓘ 'Tourmaline'

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

Localities:

St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe
Mwami (Miami), Karoi District, Mashonaland West, Zimbabwe
Magondi belt, Karoi District, Mashonaland West, Zimbabwe

ⓘ 'Tourmaline var. Rubellite'

Formula: A(D3)G6(T6O18)(BO3)3X3Z

ⓘ Tremolite

Formula: ◻Ca2Mg5(Si8O22)(OH)2

ⓘ Triplite

Formula: Mn2+2(PO4)F

ⓘ Tsumoite

Formula: BiTe

ⓘ Tulameenite

Formula: Pt2CuFe

References:

Oberthür, T., Weiser, T. W., Melcher, F., Gast, L., & Wöhrl, C. (2013). Detrital platinum-group minerals in rivers draining the Great Dyke, Zimbabwe. The Canadian Mineralogist, 51(2), 197-222.

ⓘ Uraninite

Formula: UO2

ⓘ Violarite

Formula: Fe2+Ni3+2S4

ⓘ Volynskite

Formula: AgBiTe2

ⓘ Vysotskite

Formula: PdS

ⓘ Werdingite

Formula: (Mg,Fe)2Al14Si4B4O37

ⓘ Yoderite

Formula: Mg(Al,Fe3+)3(SiO4)2O(OH)

Description: The yoderite-bearing whiteschist crops out as a 12 × 3 m pod between the foliated and unfoliated whiteschists.

ⓘ Zimbabweite (TL)

Formula: (Na,K)2PbAs4(Ta,Nb,Ti)4O18

Type Locality:

ⓘ Zircon

Formula: Zr(SiO4)

ⓘ Zvyagintsevite

Formula: Pd3Pb

References:

Oberthür, T., Melcher, F., Buchholz, P., & Locmelis, M. (2013). The oxidized ores of the Main Sulphide Zone, Great Dyke, Zimbabwe: turning resources into minable reserves-mineralogy is the key. Journal of the Southern African Institute of Mining and Metallurgy, 113(3), 00-00.