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Mineralpedia Details for Whiteite-(CaFeMg)

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Whiteite-(CaFeMg)

Whiteite-(CaFeMg)

All Whiteite species are named after John S. White Jr., the Associate Curator of Mineralogy in the Department of Mineral Sciences at the Smithsonian Institution in Washington D.C, USA and also founder and former editor of the Mineralogical Record magazine. Whiteite was formerly described as one mineral but has since been split into alternate species depending on the dominant chemical composition of the mineral in question. At only three localities worldwide, Whiteite-(CaFeMg) is found in “complex zoned granite pegmatites” and iron formations.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/whiteite-(CaFeMg).pdf

Formula
CaFe2+Mg2Al2(PO4)4(OH)2ยท8H2
Crystal System
Monoclinic 
Crystal Habit
Aggregates, Tabular 
Cleavage
Perfect, None, None 
Luster
Vitreous - Dull 
Color
yellow, yellow brown 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
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Whiteite-(CaFeMg) from Rapid Creek, Yukon Territory, Canada

Whiteite-(CaFeMg)
            from Rapid Creek, Yukon Territory, Canada

Exceptionally large and well-formed White crystals. The largest is 2cm across associated with Lazurite.

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