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Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe

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Detailed Mineral List:
Albite
Formula: NaAlSi3O8
Locality: St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Alluaudite
Formula: (Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
Locality: Mterikati pegmatite, Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
'Amblygonite-Montebrasite Series'
Locality: Mterikati pegmatite, Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Andalusite
Formula: Al2(SiO4)O
Description: Large crystals up to 5cm diameter.
Reference: Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa. 30
Arrojadite-(KFe)
Formula: {KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Locality: Ruwanzi Ranch, Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Beryl
Formula: Be3Al2(Si6O18)
Reference: Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa. 35.
Localities: Recorded from at least 1 other locality in this region.
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Reference: Bartholomew, D. S. (1990). Base metal and industrial mineral deposits of Zimbabwe. Zimbabwe Geological Survey, Mineral Resources Survey No. 22
Localities: Recorded from at least 1 other locality in this region.
Beryl var: Heliodor
Localities: Bul Bul claim, Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Baboon Hill claim, Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Chrysoberyl
Formula: BeAl2O4
Description: Yellow and gold chrysoberyl showing 'cat's eye' effect is from pegmatites in this area.
Reference: Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa: 73.
'Columbite'
Formula: (Fe,Mn)(Nb,Ta)2O6
Localities: Rita, Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Lillington claim, Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Bufroi claim, Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Locality: St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Euclase
Formula: BeAl(SiO4)(OH)
Description: In 2003 in the Mwami area, excellent pseudomorphs of euclase after beryl were collected from a pegmatite in this area. The euclase had partially or wholly replaced the beryl, some crystals were over 5cm diameter and maintained the hexagonal shape.
Reference: Journal of Gemmology 1998, Volume 26 No. 4, 209-218; Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa; Bartholomew, D. S. (1990). Base metal and industrial mineral deposits of Zimbabwe. Zimbabwe Geological Survey, Mineral Resources Survey No. 22
Localities: Recorded from at least 6 other localities in this region.
Photo: Euclase from Last Hope Mine, Mwami, Karoi District, Mashonaland West, Zimbabwe
Fluorapatite
Formula: Ca2Ca3(PO4)3F
Reference: Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa. 35.
Localities: Recorded from at least 1 other locality in this region.
Goethite
Formula: α-Fe3+O(OH)
Locality: Last Hope Mine (Lost Hope Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Hematite
Formula: Fe2O3
Locality: Last Hope Mine (Lost Hope Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Kaolinite
Formula: Al2(Si2O5)(OH)4
Locality: St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
'Lepidolite'
Reference: Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa. 35.
'Mica Group'
Locality: St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Microcline
Formula: KAlSi3O8
Locality: St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Grand Parade Mine, Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Turning Point claims, Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Last Hope Mine (Lost Hope Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Quartz
Formula: SiO2
Localities: Last Hope Mine (Lost Hope Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Quartz var: Amethyst
Formula: SiO2
Locality: St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Quartz var: Rock Crystal
Reference: Bartholomew, D. S. (1990). Base metal and industrial mineral deposits of Zimbabwe. Zimbabwe Geological Survey, Mineral Resources Survey No. 22
Quartz var: Smoky Quartz
Formula: SiO2
Locality: St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Gallagher, M.J. (1967): Phosphates and other minerals in pegmatites of Rhodesia and Uganda. Mineralogical Magazine. 36, 50-59
Sodalite
Formula: Na8(Al6Si6O24)Cl2
Reference: Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa
'Tantalite'
Formula: (Fe,Mn)(Ta,Nb)2O6
Locality: Rita, Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa. 35.
Localities: Recorded from at least 1 other locality in this region.
Photo: © Dan & Diana Weinrich Minerals. Topaz from St Anns Mine, Mwami, Karoi District, Mashonaland West, Zimbabwe
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Locality: St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
'Tourmaline var: Rubellite'
Reference: Bartholomew, D. S. (1990). Base metal and industrial mineral deposits of Zimbabwe. Zimbabwe Geological Survey, Mineral Resources Survey No. 22
Uraninite
Formula: UO2
Reference: Gallagher, M.J. (1967): Phosphates and other minerals in pegmatites of Rhodesia and Uganda. Mineralogical Magazine. 36, 50-59
'Uvite'
Formula: Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Locality: St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Zimbabweite (TL)
Formula: (Na,K)2PbAs4(Ta,Nb,Ti)4O18
Type Locality: St Anns Mine (St Anne Mine; St Anne's Mine; St Ann's Mine), Mwami (Miami), Karoi District (Urungwe; Hurungwe District), Mashonaland West, Zimbabwe
Reference: Foord, E.E.; Taggert jr., J.E.; Gaines, R.V.; Grubb, P. L.C & Kristiansen, R. (1986): Zimbabweite, a new alkali-lead-arsenic tantalate from St. Anns mine, Karoi District, Zimbabwe. Bulletin Minéralogie, 109: 331-336
Photo: © R.Kristiansen. Zimbabweite from St Anns Mine, Mwami, Karoi District, Mashonaland West, Zimbabwe


33 entries listed. 20 valid minerals. 1 (TL) - type locality of valid minerals.

References

Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa.

External Links


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