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Leucophosphite

#BN59747
SOLD
Leucophosphite from Těškov quarry, SE of Prague, Bohemia, Czech Republic - BN59747
Leucophosphite from Těškov quarry, SE of Prague, Bohemia, Czech Republic - BN59747

Leucophosphite

#BN59747
Availability
Sold
Size
6 x 4.5 x 2 cm - Sm Cabinet 
Formula
KFe3+2(PO4)2(OH)·2H2O (RRUFF)
Locality
Těškov quarry, SE of Prague, Bohemia, Czech Republic
Tagged
phosphate

Most pegmatites don't even have Leucophophite crystals as sharp and well-defined as this one. This is not a pegmatite deposit, but rather a quartz porphyry deposit mined for gravel (I assume). These Leucophosphite crystals are honey color to about 0.25mm coating Quartz with a film of red oxide, which provides a nice contrast of colors.

Leucophosphite

Formula
KFe3+2(PO4)2(OH)·2H2O 
Crystal System
Monoclinic 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Dull 
Color
brown, brownish yellow, colorless, greenish, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
3.5 

Data courtesy of Webmineral.

Collection
Dr. Buford Nichols Collection
Mineralpedia
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On Dakota Matrix
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On Dakota Matrix
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WebMineral
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