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Sterryite - Pollone mine - Valdicastello Carducci - Pietrasanta - Apuan Alps - Lucca Province - Tuscany - Italy
(#:MINS8439)
Several black thin needles of Sterryite are grown into quartz crystal in parallel formation.Probabily from the best find in the world of this rare sulphosalt !! Ex Francesco Bedognè coll.
Formula :
Ag
2
Pb
10
(Sb,As)
12
S29
System:
orthorhombic
Hardness:
3½
Rarity:
very rare
Strunz id:II/E - SULFIDES
Name origin:
Named in honor of Thomas Sterry Hunt (1826-1892), chemist and a pioneer of Canadian mineralogy. Hunt was the first chemist and later mineralogist on the staff of the Geological Survey of Canada, and the coauthor of Geology of Canada (1863).
Specimen weight:46 gr.
Crystal size:Up to 3-4 mm
Overall size: 50mm x 25 mm x 25 mm
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