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Dumortierite

#BAC63142
SOLD
Dumortierite from Dehesa, San Diego Co., California, United States - BAC63142
Dumortierite from Dehesa, San Diego Co., California, United States - BAC63142

Dumortierite

#BAC63142
Availability
Sold
Size
3.3 x 3 x 2 cm - Miniature 
Formula
(Al,□)Al6BSi3O16(O,OH)2 (RRUFF)
Locality
Dehesa, San Diego Co., California, United States

Purple compact fibrous Dumortierite.

Dumortierite

Formula
(Al,[ ])Al6BSi3O16(O,OH)2 
Crystal System
Orthorhombic 
Crystal Habit
Columnar, Fibrous, Prismatic 
Cleavage
Good, Indistinct, None 
Luster
Vitreous (Glassy) 
Color
blue, brown, violet, greenish blue, pink 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Fibrous 
Hardness
8.5 

Data courtesy of Webmineral.

Collection
William & Anne Cook Collection
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