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Amblygonite - Montebrasite

#PD35944

Amblygonite - Montebrasite

#PD35944
Availability
Sold
Size
5 x 4 x 3.5 cm - Miniature 
Formula
LiAlPO4F (RRUFF)
Locality
Hugo mine, Keystone, Pennington Co., South Dakota, United States
Tagged
phosphate , pegmatite mineral

A mass of pure Amblygonite-Montebrasite.

Amblygonite

Formula
LiAlPO4
Crystal System
Triclinic 
Crystal Habit
Columnar, Euhedral Crystals, Prismatic 
Cleavage
Perfect, Good, Distinct 
Luster
Vitreous - Pearly 
Color
white, yellow, gray, bluish gray, greenish gray 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Uneven 
Hardness
5.5-6 

Data courtesy of Webmineral.

Collection
Phillips Collection

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