Utö Mines, Utö, Haninge, Stockholm County, Sweden (original) (raw)

ⓘ Acanthite

Formula: Ag2S

ⓘ Actinolite

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

ⓘ Albite

Formula: Na(AlSi3O8)

Localities:

Utö Mines, Utö, Haninge, Stockholm County, Sweden
Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden

Colour: colorless

ⓘ Albite var. Cleavelandite

Formula: Na(AlSi3O8)

ⓘ Amblygonite

Formula: LiAl(PO4)F

Localities:

Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden

ⓘ Analcime

Formula: Na(AlSi2O6) · H2O

ⓘ Annite

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

ⓘ Anorthite

Formula: Ca(Al2Si2O8)

ⓘ 'Apatite'

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

Localities:

Utö Mines, Utö, Haninge, Stockholm County, Sweden
Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden

Colour: white, pale red, blue

ⓘ 'Apophyllite Group'

Formula: A B4[Si8O22]X · 8H2O

Description: First descripbed by Andrada (1800) as Ichthyophthalm

ⓘ Arsenopyrite

Formula: FeAsS

ⓘ Axinite-(Fe)

Formula: Ca2Fe2+Al2BSi4O15OH

ⓘ Babingtonite

Formula: Ca2(Fe,Mn)FeSi5O14(OH)

ⓘ Baryte

Formula: BaSO4

ⓘ Bavenite

Formula: Ca4Be2Al2Si9O26(OH)2

Habit: Aggregates (up to 3mm) of extremely thin blades

ⓘ Bertrandite

Formula: Be4(Si2O7)(OH)2

ⓘ Beryl

Formula: Be3Al2(Si6O18)

ⓘ 'Biotite'

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

ⓘ Bismuthinite ?

Formula: Bi2S3

ⓘ Bornite

Formula: Cu5FeS4

ⓘ Calciotantite

Formula: CaTa4O11

Localities:

Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden

Description: Found in the northern Nyköpingsgruvan granite pegmatite.

ⓘ Calcite

Formula: CaCO3

ⓘ Cassiterite

Formula: SnO2

Localities:

Utö Mines, Utö, Haninge, Stockholm County, Sweden
Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden

Colour: reddish brown,semi translucent

Description: crystals found in in cavities and fissurs in the contact zone between narrow pegmatite dikes.

ⓘ Cerussite

Formula: PbCO3

ⓘ Chalcocite

Formula: Cu2S

ⓘ Chalcopyrite

Formula: CuFeS2

ⓘ Chiavennite

Formula: CaMnBe2Si5O13(OH)2 · 2H2O

Habit: thin tabular or platy crystals often in groups or radiating clusters up to 5mm

Colour: bright yellow transparent; pale yellow

Description: Crystals often covered partly by a greenish chlorite

ⓘ 'Chlorite Group'

ⓘ 'Clay minerals'

ⓘ Clino-suenoite

Formula: ◻{Mn2+2}{Mg5}(Si8O22)(OH)2

ⓘ Columbite-(Mn)

Formula: Mn2+Nb2O6

ⓘ 'Columbite-Tantalite'

ⓘ Cookeite

Formula: (LiAl4◻)[AlSi3O10](OH)8

ⓘ Datolite

Formula: CaB(SiO4)(OH)

ⓘ Diopside

Formula: CaMgSi2O6

ⓘ Djurleite

Formula: Cu31S16

ⓘ Dolomite

Formula: CaMg(CO3)2

ⓘ Dravite

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

Localities:

Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden

ⓘ Elbaite

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

Localities:

Utö Mines, Utö, Haninge, Stockholm County, Sweden
Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden

ⓘ Eosphorite

Formula: Mn2+Al(PO4)(OH)2 · H2O

Description: Erronously reported as coming from Utö in Gustafsson, L (1991), see note in Berg & Mineral nr 2, 1991, p. 11

ⓘ Epidote

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

ⓘ Eucryptite

Formula: LiAlSiO4

ⓘ Feruvite

Formula: CaFe2+3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH)

ⓘ Fluorapatite

Formula: Ca5(PO4)3F

ⓘ Fluorapophyllite-(K)

Formula: KCa4(Si8O20)(F,OH) · 8H2O

ⓘ Fluor-elbaite

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

References:

Selway, Julie B., Smeds, Sten-Anders, Černý, Petr, Hawthorne, Frank C. (2002) Compositional evolution of tourmaline in the petalite-subtype Nyköpingsgruvan pegmatites, Utö, Stockholm Archipelago, Sweden. GFF, 124 (2) 93-102 doi:10.1080/11035890201242093

ⓘ Fluorite

Formula: CaF2

ⓘ 'Fluor-uvite-Uvite Series'

ⓘ Foitite

Formula: ◻(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)

ⓘ Friedelite

Formula: Mn2+8Si6O15(OH,Cl)10

References:

Langhof, J., Holtstam, D. & Gustafsson, L., 2000: Chiavennite and zoned genthelvite-helvite as late-stage minerals of the Proterozoic LCT pegmatites at Utö, Stockholm, Sweden. GFF, Vol. 122 (Pt. 2, June), pp. 207-212. Stockholm. ISSN 1103-5897

ⓘ Galena

Formula: PbS

ⓘ 'Garnet Group'

Formula: X3Z2(SiO4)3

ⓘ 'Genthelvite-Helvine Series'

Habit: Tetrahedra up to 1mm across

Colour: greenish yellow to yellow

Description: Crystals zonated and extremely heterogenous in their chemical composition

ⓘ Goethite

Formula: α-Fe3+O(OH)

ⓘ Graphite

Formula: C

ⓘ Gypsum

Formula: CaSO4 · 2H2O

ⓘ Helvine

Formula: Be3Mn2+4(SiO4)3S

ⓘ Hematite

Formula: Fe2O3

ⓘ Herderite

Formula: CaBe(PO4)F

Description: Erronously reported as coming from Utö in Gustafsson, L (1991), see note in Berg & Mineral nr 2, 1991, p. 11

ⓘ 'Heulandite Subgroup'

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

ⓘ Hisingerite

Formula: Fe3+2(Si2O5)(OH)4 · 2H2O

ⓘ Holmquistite (TL)

Formula: ◻{Li2}{Mg3Al2}(Si8O22)(OH)2

Description: Holmquistite occurs predominantly in mica schists that forms in the contact zone around the pegmatites. Holmquistite forms up to 2 cm long fibers, giving the mica schist a bluish shimmer.

ⓘ 'Hornblende Root Name Group'

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

ⓘ Hydroxykenomicrolite ?

Formula: (◻,Na,Sb3+)2Ta2O6(OH)

Description: The samples studied and originally named as Cesstibtantite is a zero-valent-dominant microlite, but it is not possible prove that they are hydroxykenomicrolite, according to the new nomenclature of the Pyrochlore Supergroup (Atencio et al. 2010)

References:

Atencio, D., Andrade, M. B., Christy, A. G., Giere, R., Kartashov, P. M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48 (3) 673-698 doi:10.3749/canmin.48.3.673

ⓘ 'Indicolite'

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

ⓘ Jarosite

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

ⓘ 'K Feldspar'

Localities:

Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Utö Mines, Utö, Haninge, Stockholm County, Sweden

ⓘ 'K Feldspar var. Adularia'

Formula: KAlSi3O8

Colour: pale-red

ⓘ Laumontite

Formula: CaAl2Si4O12 · 4H2O

ⓘ 'Liddicoatite'

Formula: Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)

References:

Selway, Julie B., Smeds, Sten-Anders, Černý, Petr, Hawthorne, Frank C. (2002) Compositional evolution of tourmaline in the petalite-subtype Nyköpingsgruvan pegmatites, Utö, Stockholm Archipelago, Sweden. GFF, 124 (2) 93-102 doi:10.1080/11035890201242093

ⓘ Löllingite ?

Formula: FeAs2

ⓘ Magnetite

Formula: Fe2+Fe3+2O4

ⓘ Manganite

Formula: Mn3+O(OH)

Habit: needle-like or tabular crystals, aggregates 1-2 mm in size

References:

Langhof, J., Holtstam, D. & Gustafsson, L., 2000: Chiavennite and zoned genthelvite-helvite as late-stage minerals of the Proterozoic LCT pegmatites at Utö, Stockholm, Sweden. GFF, Vol. 122 (Pt. 2, June), pp. 207-212. Stockholm. ISSN 1103-5897

ⓘ Microcline

Formula: K(AlSi3O8)

Colour: pale-green; grey-white

ⓘ Microcline var. Amazonite

Formula: K(AlSi3O8)

References:

Selway, Julie B., Smeds, Sten-Anders, Černý, Petr, Hawthorne, Frank C. (2002) Compositional evolution of tourmaline in the petalite-subtype Nyköpingsgruvan pegmatites, Utö, Stockholm Archipelago, Sweden. GFF, 124 (2) 93-102 doi:10.1080/11035890201242093

ⓘ 'Microlite Group'

Formula: A2-mTa2X6-wZ-n

Localities:

Utö Mines, Utö, Haninge, Stockholm County, Sweden
Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden

ⓘ 'Microlite Group var. Zero valent dominant member of the Microlite Group'

Description: The samples studied and originally named as Cesstibtantite is a zero-valent-dominant microlite, and may be hydroxykenomicrolite, according to the new nomenclature of the Pyrochlore Supergroup . But there is not possible to prove it.(Atencio et al. 2010)

References:

Atencio, D., Andrade, M. B., Christy, A. G., Giere, R., Kartashov, P. M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48 (3) 673-698 doi:10.3749/canmin.48.3.673

ⓘ Milarite

Formula: K(◻H2O)Ca2(Be2Al)[Si12O30]

Habit: short-prismatic crystals up to 5m in size, often double-terminated

Colour: colorless;water-clear

ⓘ Molybdenite

Formula: MoS2

ⓘ Muscovite

Formula: KAl2(AlSi3O10)(OH)2

ⓘ Nambulite ?

Formula: LiMn2+4Si5O14(OH)

Description: Possible a Ca-bearing nambulite ?

ⓘ 'Nambulite-Natronambulite Series'

ⓘ Orthoclase

Formula: K(AlSi3O8)

ⓘ Petalite (TL)

Formula: LiAl(Si4O10)

Colour: colourless

ⓘ Phlogopite

Formula: KMg3(AlSi3O10)(OH)2

References:

Selway, Julie B., Smeds, Sten-Anders, Černý, Petr, Hawthorne, Frank C. (2002) Compositional evolution of tourmaline in the petalite-subtype Nyköpingsgruvan pegmatites, Utö, Stockholm Archipelago, Sweden. GFF, 124 (2) 93-102 doi:10.1080/11035890201242093

ⓘ 'Plumbomicrolite (of Hogarth 1977)'

ⓘ Pollucite

Formula: (Cs,Na)2(Al2Si4O12) · 2H2O

Localities:

Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden

ⓘ 'Polylithionite-Trilithionite Series'

Localities:

Utö Mines, Utö, Haninge, Stockholm County, Sweden
Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden

ⓘ Pyrite

Formula: FeS2

ⓘ Pyrosmalite-(Fe)

Formula: Fe2+8Si6O15(OH,Cl)10

Habit: hexagonal prisms; tablets

Colour: Pale yellowish-brown

Description: Occurs in cracks in greenstone-magnetite ore. Shows a typical perfect cleavage

ⓘ Pyrrhotite

Formula: Fe1-xS

ⓘ Quartz

Formula: SiO2

Localities:

Utö Mines, Utö, Haninge, Stockholm County, Sweden
Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden

ⓘ Rhodochrosite

Formula: MnCO3

ⓘ Rossmanite

Formula: ◻(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)

Localities:

Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden

ⓘ 'Scapolite'

ⓘ Scheelite

Formula: Ca(WO4)

ⓘ Schorl

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

ⓘ Silver

Formula: Ag

ⓘ Sphalerite

Formula: ZnS

Colour: red

ⓘ Spodumene (TL)

Formula: LiAlSi2O6

ⓘ 'Stilbite Subgroup'

Formula: M6-7[Al8-9Si27-28O72] · nH2O

ⓘ Stokesite

Formula: CaSn[Si3O9] · 2H2O

Description: Partly replacing wickmanite

ⓘ Tantalite-(Mn) (TL)

Formula: Mn2+Ta2O6

ⓘ 'Tennantite Subgroup'

Formula: Cu6(Cu4C2+2)As4S12S

ⓘ Titanite

Formula: CaTi(SiO4)O

ⓘ Topaz

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

ⓘ 'Tourmaline'

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

Localities:

Utö Mines, Utö, Haninge, Stockholm County, Sweden
Nyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
Grundberg outcrop, Utö Mines, Utö, Haninge, Stockholm County, Sweden

ⓘ Tremolite

Formula: ◻Ca2Mg5(Si8O22)(OH)2

ⓘ Triphylite

Formula: LiFe2+PO4

Colour: Yellowish to colorless

ⓘ Triphylite var. Ferrisicklerite

Formula: Li1-x(Fe3+xFe2+1-x)PO4

Habit: malll grains or masses

ⓘ 'Uranmicrolite (of Hogarth 1977)'

Formula: (Ca,U,Na)2-x(Ta,Nb)2(O,OH)7

ⓘ Wickmanite

Formula: Mn2+[Sn(OH)6]

Description: crystals up to 0.1 mm

References:

Langhof, J., Holtstam, D. & Gustafsson, L., 2000: Chiavennite and zoned genthelvite-helvite as late-stage minerals of the Proterozoic LCT pegmatites at Utö, Stockholm, Sweden. GFF, Vol. 122 (Pt. 2, June), pp. 207-212. Stockholm. ISSN 1103-5897

ⓘ Zircon

Formula: Zr(SiO4)

ⓘ Zoisite

Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)