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0 item @ $0.00  

Kornerupine

#59770

Kornerupine

#59770
Availability
Sold
Size
2 x 1.5 x 1.5 cm - Thumbnail 
Formula
(Mg,Fe2+)4Al6(Si,Al,B)5O21(OH) (RRUFF)
Locality
Gratinern Hill, Ontario, Canada

Dark green prismatic crystals to 1.5cm.

Kornerupine

Formula
(Mg,Fe2+)4Al6(Si,Al,B)5O21(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Massive - Fibrous, Prismatic 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
brown, colorless, green, greenish yellow, yellow 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Uneven 
Hardness

Data courtesy of Webmineral.

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