Protochabournéite : Tl4-xPb2+2xSb20-x-yAsyS34 with 0.02(2) < x < 0.34(2), 5.71(9) < y < 6.69(9)
1cm x 1.5cm x 2cm
Collected by:
Photo added to mindat.org
“Protochabourneite from TL
Coll. e foto P.Grandi”
Pietro Grandi - 21st April 2014
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