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Bournonite with Freibergite$1,300.00
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The Viboras mine at Machacamarca in the Potosí Department of Bolivia is most famous for its well-crystallised Bournonite. This small miniature features several excellent cog-wheel crystals and for added interest these are entwined with stalactitic rod-like overgrowths of the mineral Freibergite. It should be pointed out that Freibergite is now of a somewhat uncertain status and currently goes under the collective Freibergite Subgroup. The Bournonite crystals are developed up to 1.9 cm across and have a brilliant steel-grey metallic lustre. By contrast the micro-crystallised Freibergite tends to be a sooty matt black.
Product details
Species
SizeMiniature
Dimensions4.7 x 3.5 x 2.5 cm
Locality
SKUCC19966
Listed on10/24/2024
Comments
Known provenance
Species and Locality Wiki Pages
Collectors of Bournonite from Cerro de Potosí
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