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Novákite & Paxite

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JYJ905160

Novákite & Paxite

Description Tabs

Description
Locality: 
Černý Důl, Krkonoše Mountain, Hradec Králové Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1 × 1 cm
Description

Grey metallic novákite & paxite from the Cerny Dul, Hradec, Czech Republic. 

Rare mineral. 

Mineral Data
What's on the rock

Novákite

Formula: 
Cu20AgAs10
Strunz: 
2.AA.15
Crystal System: 
Monoclinic
Hardness: 
3.0 - 3.5
Streak: 
Black
Type Locality: 
Černý Důl (Schwarzenthal), Krkonoše Mtn (Riesengebirge), Hradec Králové Region, Bohemia (Böhmen; Boehmen), Czech Republic

Paxite

Formula: 
CuAs2
Strunz: 
2.EB.15c
Crystal System: 
Monoclinic
Hardness: 
3.5
Colour: 
Grey
Streak: 
Black
Type Locality: 
Černý Důl (Schwarzenthal), Krkonoše Mtn (Riesengebirge), Hradec Králové Region, Bohemia (Böhmen; Boehmen), Czech Republic