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Almandine

#DL63768
SOLD
Almandine from Strickland pegmatite, Middlesex Co., Connecticut, United States - DL63768
Almandine from Strickland pegmatite, Middlesex Co., Connecticut, United States - DL63768

Almandine

#DL63768
Availability
Sold
Size
8.5 x 5 x 3.5 cm - Sm Cabinet 
Formula
Fe2+3Al2(SiO4)3 (RRUFF)
Locality
Strickland pegmatite, Middlesex Co., Connecticut, United States

The specimen is out of the study suite of minerals from David London, arguably one of the foremost experts on pegmatite geology and mineralogy. London wrote the book on "Pegmatites".

Almandine

Formula
Fe2+3Al2(SiO4)3 
Crystal System
Isometric 
Crystal Habit
Equant crystals, rounded grains, typically well-formed dodecahedra or trapezohedra 
Cleavage
None 
Luster
Vitreous - Resinous 
Color
brown, brownish red, red, black, black red 
Streak
white 
Class
Isometric - Hexoctahedral 
Fracture
Brittle - Conchoidal 
Hardness
7-8 

Data courtesy of Webmineral.

Collection
Dr. David London Collection
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