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Spangolite Nantokite & Cuprite

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SKY210088

Spangolite Nantokite & Cuprite

Rare Mineral

Description Tabs

Description
Locality: 
Madonna di Fucinaia Slag Locality, Campiglia Marittima, Campigliese, Livorno Province, Tuscany, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2 × 1.5 cm
Description

Outstanding colorful thumbnail with many species: greenish blue spangolite, pale green nantokite crystals (some of them cubes), deep red cuprite, minoritary cyanotrichite, azurite and other unidentified species.

Mineral Data
What's on the rock

Spangolite

Formula: 
Cu6Al(SO4)(OH)12Cl·3H2O
Strunz: 
7.DD.15
Crystal System: 
Hexagonal
Hardness: 
3.0

Nantokite

Formula: 
CuCl
Strunz: 
3.AA.05
Crystal System: 
Isometric
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Carmen Bajo Mine, Nantoko, Copiapó Province, Atacama Region, Chile

Cuprite

Formula: 
Cu2O
Strunz: 
4.AA.10
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

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