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1 item @ $125.00  

Montgomeryite with Bobdownsite

#28500

Montgomeryite with Bobdownsite

#28500
Availability
Sold
Size
4.5 x 7 x 4 cm - Sm Cabinet 
Formula
Ca4MgAl4(PO4)6(OH)4·12H2O (RRUFF)
Locality
Tip Top mine, Custer Co., South Dakota, United States
Tagged
phosphate

Good coverage on both sides of matrix of light to dark pink bladed Montgomerite crystals in clusters to 4mm with radial cross sections associated with micro pinkish and colorless rhombs of Bobdownsite.

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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