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Arsiccioite & Protochabournéite

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SKY201535

Arsiccioite & Protochabournéite

Rare Mineral-Classic locality
Type Locality

Description Tabs

Description
Locality: 
Monte Arsiccio Mine, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.3 × 0.6 cm
Description

Exceptionally well formed red crystal of the new thallium mineral arsiccioite with formula AgHg2Tl(As,Sb)2S6, (IMA 2013-58, first photo) associated to black crystals of protochabourneite, another new thallium mineral of composition (Tl5-xPb2x(Sb,As)21-xS34, IMA 2011-054). Arsiccioite and protochabourneite have not found at any other site in the world, so they are real thallium rarities and both are one locality mineral.

Mineral Data
What's on the rock

Arsiccioite

Formula: 
AgHg2Tl(As,Sb)2S6
Hardness: 
0.0
Colour: 
Red
Type Locality: 
Monte Arsiccio Mine, Sant'Anna di Stazzema, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy...

Protochabournéite

Formula: 
Tl5-xPb2x(Sb,As)21-xS34 (x ~ 1.2-1.5)
Hardness: 
0.0
Type Locality: 
Sant'Olga tunnel, Monte Arsiccio Mine, Sant'Anna di Stazzema, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy...

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