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0 item @ $0.00  

Montgomeryite with Whitlockite

#51020

Montgomeryite with Whitlockite

#51020
Availability
Available
Price
$225.00
Size
8.5 x 5 x 2.5 cm - Sm Cabinet 
Formula
Ca4MgAl4(PO4)6(OH)4·12H2O (RRUFF)
Locality
Tip Top mine, Custer Co., South Dakota, United States
Tagged
phosphate , pegmatite mineral

Bright red bladed Montgomeryite crystals to 0.75mm in large groups giving that astonding red color. There is no other red Montgomeryite occurence that I know of, how about you? Whitlockite is associated with it as lilac groups.

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.

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