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1 item @ $125.00  

Montgomeryite

#PD34523

Montgomeryite

#PD34523
Availability
Sold
Size
10 x 6 x 5 cm - Cabinet 
Formula
Ca4MgAl4(PO4)6(OH)4·12H2O (RRUFF)
Locality
Tip Top mine, Custer Co., South Dakota, United States
Tagged
phosphate

Larger specimen with pink lath-like crystals of Montgomeryite to 2mm on orthoclase matrix. This was a very unruly specimen and would not focus. So, sorry for the lack of it!

Montgomeryite

Formula
Ca4MgAl4(PO4)6(OH)4·12H2
Crystal System
Monoclinic 
Cleavage
Perfect, Indistinct, None 
Luster
Vitreous (Glassy) 
Color
colorless, yellowish, white, green, red 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness

Data courtesy of Webmineral.

Collection
Phillips Collection

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