Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Ferro-glaucophane

Views:
Watches:
SHS542757

Ferro-glaucophane

Description Tabs

Description
Locality: 
Groix Island, Morbihan, Brittany, France
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 2.5 cm
Description

Nice ferroglacophane in matrix

Mineral Data
What's on the rock

Ferro-glaucophane

Formula: 
◻[Na2][Fe2+3Al2]Si8O22(
Strunz: 
9.DE.25
Hardness: 
5.0 - 6.0
Type Locality: 
Herin mine, Champdepraz, Aosta Valley, Italy