Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Birnessite

Views:
Watches:
CLB145865

Birnessite

Classic Locality

Description Tabs

Description
Locality: 
Km-3 Mine, Lavrion District, Attiki Prefecture, Greece
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.8 × 2 cm
Description

Black birnessite in vugs. White mineral not identified. Originally labeled as 'vernadite'.

Mineral Data
What's on the rock

Birnessite

Formula: 
(Na,Ca)0.5(Mn4+,Mn3+)2O4·1.5H2O
Strunz: 
4.FL.45
Crystal System: 
Orthorhombic
Hardness: 
1.5
Type Locality: 
Birness, Ellon, Buchan Grampian (Aberdeenshire), Scotland, UK

Seller Information

Payment options: offline, paypal_wpp, paypal_wps