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0 item @ $0.00  

Whitlockite with Robertsite

#49429

Whitlockite with Robertsite

#49429
Availability
Sold
Size
4.5 x 4 x 3 cm - Miniature 
Formula
Ca9Mg(PO4)6(PO3OH) (RRUFF)
Locality
Tip Top mine, Custer Co., South Dakota, United States
Tagged
phosphate , pegmatite mineral

A cool specimen of slightly smoky Quartz with fractures lined with thin layers of white to slightly yellow botryoidal carbonate apatite upon which is deposited colorless Whitlockite crystals to about 0.3mm. On and included within the Whitlockite are super tiny dark red Robertsite crystals.

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

Data courtesy of Webmineral.

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