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Clinoclase & Goudeyite

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PDM657659

Clinoclase & Goudeyite

Description Tabs

Description
Locality: 
Setoda-cho-hayashi, Ikuchi Island, Inland Sea, Hiroshima Prefecture, Honshu Island, Japan
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3.5 × 1.6 cm
Description

Dark blue crystallized clinoclase on matrix covered also by green goudeyite, mainly at the rear side from Setoda (Japan).

Acquired in 1988, it is an Ex. Dr. Bob Janssens specimen #748.

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

Goudeyite

Formula: 
AlCu6(AsO4)3(OH)6·3H2O
Strunz: 
8.DL.15
Hardness: 
3.0 - 4.0
Type Locality: 
Majuba Hill Mine (Majuba Mine; Mylar Mine; Tin Mine; Nevada Bureau of Mines and Geology sample sites 2844 & 2846), Antelope District, Pershing Co., Nevada, USA

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