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Magnetite & Ferro-actinolite

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SCH56440

Magnetite & Ferro-actinolite

Description Tabs

Description
Locality: 
Burguillos del Cerro, Badajoz, Extremadura, Spain
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.1 × 0.8 cm
Description

Beautiful small specimen of bright rhombododecahedral magnetite crystals richly over a matrix of jackstraw ferroactinolite.

Mineral Data
What's on the rock

Magnetite

Formula: 
Fe2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.5
Streak: 
Black

Ferro-actinolite

Formula: 
☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Strunz: 
9.DE.10
Hardness: 
5.0 - 6.0
schani

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