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Apophyllite-(KF) from
Aris Quarries (Ariskop Quarry; Railway Quarry), Aris, Windhoek, Windhoek District, Khomas Region, Namibia


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Aris Quarries (Ariskop Quarry; Railway Quarry), Aris, Windhoek, Windhoek District, Khomas Region, Namibia
© Bill Lechner
Description
Comments:Refined occupancy of F site: 1.00 (R = 1.8%; Uwe Kolitsch structure refinement) -> fluorapophyllite
Habit:prismatic xx up to 12 mm
Colour:colorless, pink, yellow
Quality of samples:not specified / average specimens
Confirmation
Validity:Believed Valid
References
References:von Knorring, O. and Franke, W. (1987): A preliminary note on the mineralogy and geochemistry of the Aris phonolite, SWA/Namibia. Comm. Geol. Surv. S.W.Africa (Namibia) 3, 61; Petersen, O.V., Fockenberg, T., Toft, P.C. & Rattay, M. (1997): Natrophosphate from the Aris phonolites, Windhoek, Namibia. Neues Jahrbuch für Mineralogie, Monatshefte 1997, 511-517; Uwe Kolitsch (single-crystal X-ray diffraction); [http://www.koeln.netsurf.de/~w.steffens/aris.htm]
Data
Mineral Data:Click here to view Apophyllite-(KF) data
Locality Data:Click here to view Aris Quarries (Ariskop Quarry; Railway Quarry), Aris, Windhoek, Windhoek District, Khomas Region, Namibia
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