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Lamprophyllite

#RS60526
SOLD
Lamprophyllite from Pegmatite Peak, Bearpaw Mts, Hill Co., Montana, United States - RS60526
Lamprophyllite from Pegmatite Peak, Bearpaw Mts, Hill Co., Montana, United States - RS60526

Lamprophyllite

#RS60526
Availability
Sold
Size
7 x 6.5 x 5 cm - Sm Cabinet 
Formula
Na3(SrNa)Ti3(Si2O7)2O2(OH)2 (RRUFF)
Locality
Pegmatite Peak, Bearpaw Mts, Hill Co., Montana, United States

Golden brown, thin, bladed crystals of Lamprophyllite to 2cm.

Lamprophyllite

Formula
Na3(SrNa)Ti3(Si2O7)2O2(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Radial, Stellate, Acicular 
Cleavage
Good, None, None 
Luster
Vitreous - Pearly 
Color
yellow, brown 
Streak
brownish white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
2.5 

Data courtesy of Webmineral.

Collection
RC Stamberg Collection
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