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0 item @ $0.00  

Vonsenite

#AK28615

Vonsenite

#AK28615
Availability
Sold
Price
$55.00
Size
5.5 x 5 x 3 cm - Sm Cabinet 
Reduced Price
$35.00
Formula
Fe2+2Fe3+O2(BO3) (RRUFF)
Locality
Vallerano quarry, Roma, Lazio, Italy

Pink to white fibrous and acicular crystals in mattes and sprays in the many vugs of this matrix. This was originally labeled as Ashcroftine. New information from Mr. Carlini and Dr. Gian carlo PArodi indicates that this material might in fact be Vonsenite with a fine coating of iron oxide.

Vonsenite

Formula
Fe2+2Fe3+O2(BO3
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Radial, Fibrous 
Cleavage
None, None, None 
Luster
Adamantine - Metallic 
Color
greenish black, black 
Streak
black 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness

Data courtesy of Webmineral.

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