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Forsterite

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QRI877850

Forsterite

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Description
Locality: 
Riu Gironi Basanite Outcrop, Villaputzu, South Sardinia Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3.3 × 2.6 cm
Largest Crystal: 
0.40cm
Weight: 
30.00gr
Description

Crude, dark green olivine crystals on top of brown volcanic matrix. These specimens are known to connoisseurs and scarcely spotted on the market, even in Italy.
From my personal collection, from a 20 years old find.

Mineral Data
What's on the rock

Forsterite

Formula: 
Mg2SiO4
Strunz: 
9.AC.05
Crystal System: 
Orthorhombic
Hardness: 
7.0
Streak: 
White
Type Locality: 
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy

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