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Routhierite Arsiccioite & Protochabournéite

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SKY213882

Routhierite Arsiccioite & Protochabournéite

Type and only locality known !
Rare Mineral

Description Tabs

Description
Locality: 
Monte Arsiccio Mine, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.2 × 1 cm
Description

An incredible combination of three extremely rare thallium minerals in crystallized form: routhierite (Tl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6,) arsiccioite (AgHg2Tl(As,Sb)2S6) and protochabourneite (Tl5-xPb2x(Sb,As)21-xS34). The last two are, in addition, very new: arsiccioite is IMA 2013-58 and protochabourneite IMA 2011-054. The physical aspect of each species is as follows: arsiccioite is light red (photos 1,2,4,5), protochabourneite is metallic black (photo 1, left) and routhierite is shiny dark red( photo 3). Arsiccioite and protochabourneite have not found at any other site in the world, so they are a one locality mineral.

Mineral Data
What's on the rock

Routhierite

Formula: 
Tl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6
Strunz: 
2.GA.40
Hardness: 
3.5
Type Locality: 
Jas Roux, La Chapelle-en-Valgaudemar (La Chapelle-en-Valgaudémar), Hautes-Alpes, Provence-Alpes-Côte d'Azur, France...

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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