Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Malachite Asbolane & Dolomite

Views:
Watches:
PAV947942

Malachite Asbolane & Dolomite

Classic Locality

Description Tabs

Description
Locality: 
Telhadela Mine, Ribeira de Fráguas, Albergaria-a-Velha, Aveiro District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.9 × 2.5 × 2.6 cm
Description

Spheroidal malachite associated to dolomite and malachite fibers coated by a complex Mn oxyde with Ni, Co and some Fe - compatible with asbolane. 

Collected: 
Boxed with Label
Mineral Data
What's on the rock

Malachite

Formula: 
Cu2(CO3)(OH)2
Strunz: 
5.BA.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0

Asbolane

Formula: 
(Ni,Co)2-xMn4+(O,OH)4·nH2O
Strunz: 
4.FL.30
Crystal System: 
Hexagonal
Hardness: 
0.0

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White