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Vonsenite

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CR530470

Vonsenite

Description Tabs

Description
Locality: 
Monchi Mine, Burguillos del Cerro, Badajoz, Extremadura, Spain
Class: 
Massive/Crystalline
Size Range: 
Cabinet (10-18 cm)
Size: 
12.5 × 7 × 3 cm
Description

Vonsenite is a rare high-temperature iron borate occurring in contact metamorphic deposits.

This plate is a solid mass of sparkly, flat vonsenite lathes. Not pretty to look at, but this is a rich, highly representative example of the species from a well-known Spanish locale. Older material

Mineral Data
What's on the rock

Vonsenite

Formula: 
Fe2+2Fe3+(BO3)O2
Strunz: 
6.AB.30
Hardness: 
5.0
Type Locality: 
Old City Quarry (City Quarry), North Hill, Fairmont Park, Riverside, Riverside Co., California, USA