Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Osumilite

Views:
Watches:
MEX157463

Osumilite

Classic Locality

Description Tabs

Description
Locality: 
Marrubiu, Monte Arci, Oristano Province, Sardinia, Italy
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 2.4 × 1.2 cm
Description

Black, high lustrous, hexagonal osumilite on matrix. The crystals shows both a blue reflexion. One of crystal have yet a light blue transparent crystal edge.

Mineral Data
What's on the rock

Osumilite

Formula: 
(K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30
Strunz: 
9.CM.05
Hardness: 
5.0 - 6.0
Colour: 
Blue
Type Locality: 
Sakkabira, Osumi Peninsula, Kagoshima Prefecture, Kyushu Region, Japan