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Axinite-(Fe) with Danburite

#AH53932

Axinite-(Fe) with Danburite

#AH53932
Availability
Sold
Size
7.5 x 8 x 7 cm - Sm Cabinet 
Formula
Ca4Fe2+2Al4[B2Si8O30](OH)2 (RRUFF)
Locality
Colebrook Hill mine, Rosebery dist., Tasmania, Australia

Brown to purplish brown, lustrous, tabular crystals to 7mm. This is a great Axinite specimen with superb crystals. The original label with the specimen places the locality as Mt. Bischoff. I believe it is actually Colebrook based upon crystal forms and the association with Danburite, which are white to faint green crystals on the Axinite.

Axinite-(Fe)

Formula
Ca4Fe2+2Al4[B2Si8O30](OH)2 
Crystal System
Triclinic 
Crystal Habit
Massive - Granular, Lamellar 
Cleavage
Distinct, Poor, Poor 
Luster
Vitreous (Glassy) 
Color
brown, purplish blue, gray, greenish yellow 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Brittle - Conchoidal 
Hardness
6.5-7 

Data courtesy of Webmineral.

Collection
Arnold G Hampson Collection

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