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Gratonite (Type Locality)$4,000.00
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Gratonite is a rare lead-arsenic sulfosalt and the Excelsior Mine in Peru is the type locality for the species. This is an exceptional thumbnail cluster consisting of several dozen, lead-gray metallic, almost pseudocubic at first glance, but are actually trigonal, with crystals between 1.5 and 3 mm. They are truly rare on the market having mostly come out mostly in the mid-1930s and then trickled out a few times, but probably as hold-backs from the original find. It is a very sculptural and reflective piece piece with crystals protruding everywhere, even on the back. This is a full sized, elegant thumbnail with good sized crystals for the species. Ex. Eduard Lopatka and Hans-Jurgen Wilke collections. Gratonite is hard to obtain these days, and one of the most desirable of rare sulfides in my opinion for its beauty and crystal habit.
Product details
Species
SizeMiniature
Dimensions3.0 x 2.3 x 1.9 cm
Locality
Excelsior Mine, Cerro de Pasco, Pasco Prov., Pasco, Peru (Type Locality)
SKURARE25-136
Listed on09/26/2025
Known provenance
Species and Locality Wiki Pages
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