Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Clinoclase & Cornwallite

Views:
Watches:
FNW42068

Clinoclase & Cornwallite

Description Tabs

Description
Locality: 
Majuba Hill Mine, Antelope, Pershing County, Nevada, United States of America
Size Range: 
Cabinet (10-18 cm)
Size: 
9 × 11 × 4.5 cm
Description

Good cabinet specimen having two uncommon minerals. Both are very good examples of their species. The deep blue crystals of clinoclase are very beautiful and contrast with the green botryoidal formations of cornwallite.

Magnification is essential to enjoy it.

Mineral Data
What's on the rock

Clinoclase

Formula: 
Cu3(AsO4)(OH)3
Strunz: 
8.BE.20
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0
Type Locality: 
Wheal Gorland, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK

Cornwallite

Formula: 
Cu5(AsO4)2(OH)4
Strunz: 
8.BD.05
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Wheal Gorland, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Fine Minerals World