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Schiavinatoite
This specimen is highlighted by a crystal of super rare, lustrous, black, schiavinatoite, 1.0 cm across, a niobium, tantalum, borate. The matrix is quartz and rubellite. This crystal is the most LUSTROUS example of the species I have seen, as most are very dull in luster. This is a newly named, extremely rare mineral from Madagascar. I obtained this in exchange from Dr. Pezzotta, who specializes in the minerals of Madagascar and I think could be safely considered the authority on finely crystallized rarities here...he told me these are among the largest fine crystals known for the species. I certainly have seen nothing comparable on the market, and for that matter you don't see much of it at all on the market.
Unknown Owner
Product details
Species
SizeMiniature
Dimensions4.3 x 3.0 x 2.6 cm
Locality
Antsongombato mine, Betafo Department, Antananarivo Province, Madagascar
Added on10/23/2024
Comments
Known provenance
2024/08
Unknown Owner
Not disclosed—Species and Locality Wiki Pages
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