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Vonsenite

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TPX756895

Vonsenite

Rare Mineral

Description Tabs

Description
Locality: 
Monchi Mine, Burguillos del Cerro, Badajoz, Extremadura, Spain
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.1 × 2.3 × 1.9 cm
Weight: 
45.00gr
Description

Very interesting group of vonsenite acicular crystals, a rare magnetic iron borate found in this old Spanish iron mine.

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

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