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Namuwite & Brianyoungite

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BCK221297

Namuwite & Brianyoungite

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Description
Locality: 
Ramsbeck, Bestwig, Arnsberg, North Rhine - Westphalia, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
1.2 × 1 × 0.2 cm
Description

You are bidding on a small specimen with rich clusters of white brianyoungite crystals with rich hexagonal blue namuwite crystals and sharp prisms of gypsum.

Mineral Data
What's on the rock

Namuwite

Formula: 
(Zn,Cu)4(SO4)(OH)6·4H2O
Strunz: 
7.DD.50
Crystal System: 
Hexagonal
Hardness: 
2.0
Colour: 
Sea green
Type Locality: 
Aberllyn Mine, Betws-y-coed, Gwydyr Forest area, Conwy (Gwynedd; Caernarvonshire), Wales, UK

Brianyoungite

Formula: 
Zn3(CO3,SO4)(OH)4
Strunz: 
5.BF.30
Crystal System: 
Orthorhombic or Monoclinic
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Brownley Hill Mine (Bloomsberry Horse Level), Nenthead, Alston Moor District, North Pennines, North and Western Region (Cumberland), Cumbria, England, UK

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

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