Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Fayalite & Forsterite

Views:
Watches:
MGR847532

Fayalite & Forsterite

Description Tabs

Description
Locality: 
Kapfenstein, Südoststeiermark District, Styria, Austria
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.3 × 6.3 × 4.2 cm
Description

A cross section of a so called "Olivin-bomb", the Geo-Trail at the area is famous for this material and you even can see them in situ there. Uncommon and more rare material from this well known locality.

Mineral Data
What's on the rock

Fayalite

Formula: 
Fe2+2SiO4
Strunz: 
9.AC.05
Crystal System: 
Orthorhombic
Hardness: 
7.0
Type Locality: 
Faial Island (Fayal Island), Azores District, Portugal

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