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Tremolite & Magnetite

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Tremolite & Magnetite

Description Tabs

Description
Locality: 
Masca Băişoara, Cluj County, Romania
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.5 × 2 cm
Largest Crystal: 
1.00cm
Weight: 
37.50gr
Description

1 cm Tremolite crystals with Magnetit from a contact metasomatic zone.

Mineral Data
What's on the rock

Tremolite

Formula: 
☐{Ca2}{Mg5}(Si8O22)(OH)2
Strunz: 
9.DE.10
Hardness: 
5.0 - 6.0
Streak: 
White
Type Locality: 
Campolungo, Piumogna Valley, Leventina, Ticino (Tessin), Switzerland

Magnetite

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