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D06-237 - Schiavinatoite xls to 2 cm (new species, 1999) - $ 2000 SOLD Antsongombato mine, Betafo Department, Antananarivo Province, Madagascar miniature, 5.6 x 3.9 x 3.5 cm ex. Dr. Frederico Pezzotta
This is a newly named, extremely rare mineral from Madagascar. Embedded in quartz are crystals of sub-metallic, taupe-gray, crystals to 2 cm in length. 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 comprable on the market, and for that matter you don't see much of it at all on the market.
MD-139740 - Schiavinatoite - - Archived Ampanodiana South pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar miniature, 4.1 x 3.5 x 2.5 cm.
4.1 x 3.5 x 2.5 cm. This borate is the niobium analogue of Behierite. This is a very good example of this incredibly rare species. It features a well formed, relatively sharp, dark brownish crystal of Schiavinatoite measuring 3 mm with contrasting pink Tourmaline on matrix.
MD-260475 - Schiavinatoite - - Archived Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar small cabinet, 5.6 x 3.9 x 3.5 cm.
5.6 x 3.9 x 3.5 cm. This is a newly named (1999), extremely rare mineral from Madagascar. Embedded in quartz are sub-metallic, taupe-gray crystals to 2 cm in length. 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.
MD-271702 - Schiavinatoite - - Archived Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar miniature, 4.3 x 3.0 x 2.6 cm.
4.3 x 3.0 x 2.6 cm. This specimen is highlighted by a crystal of very 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 lustre. 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.
MD-70411 - Schiavinatoite, Tourmaline - - Archived Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar thumbnail, 2.8 x 2.0 x 1.7cm
This borate is the niobium analogue of Behierite. This is a good example of this incredibly rare species. It features a partial crystal of Schiavinatoite measuring up to 8 mm on contrasting pink Tourmaline matrix. 2.8 x 2.0 x 1.7cm
T07-106 - Schiavinatoite - $ 1200 SOLD Antsongombato mine, Betafo Department, Antananarivo Province, Madagascar miniature, 4.3 x 3.0 x 2.6 cm
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 lustre. 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. All Content and Design ©1996-2010 The ArkenstonePowered by http://mineralwebsites.comBy-species Galleries | ||||||||||||||
