Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Calcite from
Bultfontein Mine, KEM JV Mine (Kimberley Ekapa Mining Joint Venture mine; Kimberley Underground mine), Kimberley, Sol Plaatje Local Municipality, Frances Baard District Municipality, Northern Cape, South Africa


Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Natrolite3
Fluorapophyllite-(K)3
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Bultfontein Mine, KEM JV Mine (Kimberley Ekapa Mining Joint Venture mine; Kimberley Underground mine), Kimberley, Sol Plaatje Local Municipality, Frances Baard District Municipality, Northern Cape, South Africa
Data Identifiers
Mindat Occurrence Record ID:1032498
Long-form Identifier:1:3:1032498:1
GUID (UUID V4):0
Nearest other occurrences of Calcite
3.6km (2.2 miles) ⓘWesselton Mine (Wesselton Shaft), KEM JV Mine (Kimberley Ekapa Mining Joint Venture mine; Kimberley Underground mine), Kimberley, Sol Plaatje Local Municipality, Frances Baard District Municipality, Northern Cape, South Africa
3.6km (2.3 miles) ⓘDe Beers Mine, Kimberley, Sol Plaatje Local Municipality, Frances Baard District Municipality, Northern Cape, South Africa
4.6km (2.9 miles) ⓘKimberley Mine, Kimberley, Sol Plaatje Local Municipality, Frances Baard District Municipality, Northern Cape, South Africa
5.9km (3.7 miles) ⓘBenfontein sills, Kimberley, Sol Plaatje Local Municipality, Frances Baard District Municipality, Northern Cape, South Africa
68.2km (42.4 miles) ⓘBlaauwkrantz, Siyancuma Local Municipality, Pixley ka Seme District Municipality, Northern Cape, South Africa
74.5km (46.3 miles) ⓘKoffiefontein Mine, Koffiefontein, Letsemeng Local Municipality, Xhariep District Municipality, Free State, South Africa
80.9km (50.3 miles) ⓘRovic Mine, Boshof, Tokologo Local Municipality, Lejweleputswa District Municipality, Free State, South Africa
References
Parry, John, Williams, Alpiieus F., Wright, F. E. (1932) On bultfonteinite, a new fluorine-bearing hydrous calcium silicate from South Africa. Mineralogical Magazine and Journal of the Mineralogical Society, 23 (138) 145-162 doi:10.1180/minmag.1932.023.138.01
Giuliani, A., Kamenetsky, V.S., Phillips, D., Kendrick, M.A., Wyatt, B.A., Goemann, K. (2012) Nature of alkali-carbonate fluids in the sub-continental lithospheric mantle. Geology, 40 (11) 967-970 doi:10.1130/g33221.1
Giuliani, Andrea, Soltys, Ashton, Phillips, David, Kamenetsky, Vadim S., Maas, Roland, Goemann, Karsten, Woodhead, Jon D., Drysdale, Russell N., Griffin, William L. (2017) The final stages of kimberlite petrogenesis: Petrography, mineral chemistry, melt inclusions and Sr-C-O isotope geochemistry of the Bultfontein kimberlite (Kimberley, South Africa) Chemical Geology, 455. 342-356 doi:10.1016/j.chemgeo.2016.10.011
Tarasov, A., Sharygin, I., Golovin, A., Dymshits, A., & Rezvukhin, D. (2021, April). Mineral assemblage within secondary crystallized melt inclusions in olivine of mantle xenoliths from the Bultfontein kimberlite pipe (Kaapvaal craton, South Africa). In EGU General Assembly Conference Abstracts (pp. EGU21-4486).
Tarasov, AA (2022) Mineralogy Assemblage of Olivine-Hosted Secondary Melt Inclusions from Bultfontein Pipe (South Africa) and Constraints on the Primary Kimberlite Melt Composition. X International Siberian Early Career GeoScientists Conference: Proceedings of the Conference (13-17 June 2022, Novosibirsk, Russia)/ IGM SB RAS, IPPG SB RAS, NSU. – Novosibirsk: IPC NSU, 2022. - 228 p. - ISBN 978-5-4437-1337-3..
 
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