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Whitlockite with Montgomeryite

#BN55089
SOLD
Whitlockite from Tip Top mine, Custer Co., South Dakota, United States - BN55089
Whitlockite from Tip Top mine, Custer Co., South Dakota, United States - BN55089

Whitlockite with Montgomeryite

#BN55089
Availability
Sold
Size
8.5 x 7 x 2.5 cm - Sm Cabinet 
Formula
Ca9Mg(PO4)6(PO3OH) (RRUFF)
Locality
Tip Top mine, Custer Co., South Dakota, United States
Tagged
phosphate , pegmatite mineral

Warterclear rhombic crystals of Whitlockite to about 1mm on red Montgomeryite.

Whitlockite

Formula
Ca9Mg(PO4)6(PO3OH) 
Crystal System
Trigonal 
Crystal Habit
Rhombohedral Crystals, Tabular, Pistolitic 
Cleavage
None, None, None 
Luster
Vitreous - Resinous 
Color
colorless, gray, gray white, yellowish, white 
Streak
white 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Brittle - Uneven 
Hardness
5 

Data courtesy of Webmineral.

Collection
Dr. Buford Nichols Collection
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