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0 item @ $0.00  

Crandallite

#AH55332

Crandallite

#AH55332
Availability
Sold
Size
8 x 4.5 x 1 cm - Sm Cabinet 
Formula
CaAl3(PO4)(PO3OH)(OH)6 (RRUFF)
Locality
Little Green Monster mine, Clay Canyon, Fairfield, Utah Co., Utah, United States
Tagged
phosphate

Polished slab showing the whirls and intricate nature of these intresting phosphate nodules once brought onto the market by Art Montgomery (Montgomeryite) and Ed Over (Overite). As opposed to pegmatitic phosphates formed in igneous high temperature of formation, these phosphates were formed under marine, low temperature and sedimentary environments. Sedimentary phosphates are actually termed phosphorites.

Crandallite

Formula
CaAl3(PO4)(PO3OH)(OH)6 
Crystal System
Trigonal 
Crystal Habit
Compact, Massive - Granular, Fibrous 
Cleavage
Perfect, None, None 
Luster
Vitreous - Dull 
Color
gray, yellow, yellowish white, light red 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Hardness

Data courtesy of Webmineral.

Collection
Arnold G Hampson Collection

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