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Tubulite

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JYJ626558

Tubulite

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Description
Locality: 
Borgofranco Mines, Biò, Borgofranco d'Ivrea, Canavese, Torino Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1 × 0.8 cm
Description

Beautiful tubulite crystals on boulangerite and siderite. 

References:

 

Moëlo, Y., Pecorini, R., Ciriotti, M.E., Meisser, N., Caldes-Rouillon, M., Orlandi, P., Petit, P.E., Martini, B., Salvetti, A. (2012) Tubulite, IMA 2011-109. CNMNC Newsletter No. 13, June 2012, page 811; Mineralogical Magazine, 76, 807-817.; Moëlo, Y., Pecorini, R., Ciriotti, M.E., Meisser, N., Caldes, M.T., Orlandi, P., Petit, P.-E., Martini, B., Salvetti, A. (2014): Tubulite, Ag2Pb22Sb20S53, a new Pb-Ag-Sb sulfosalt from Le Rivet quarry, Peyrebrune ore field (Tarn, France) and Biò, Borgofranco mines, Borgofranco d’Ivrea (Piedmont, Italy). European Journal of Mineralogy, 25, 1017-1030. 

Mineral Data
What's on the rock

Tubulite

Formula: 
Ag2Pb22Sb20S53
Strunz: 
2.JB.35f
Hardness: 
0.0
Colour: 
Black
Type Locality: 
Rivet Quarry, Montredon-Labessonnié, Réalmont, Tarn, Midi-Pyrénées, France