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TT56AL5: Hexagonal floater crystal, with very marked polycrystalline growths, shiny, transparent and with an intense deep blue color. The species, a magnesium-potassium cyclosilicate, is a rarity recently (2019) approved by the IMA. The specimen comes from the type locality for the species. Accompanied by an original label signed by Laurent Thomas, after whom the species is named.
Beravina, Ambaro, Tsaraitso, Betroka District, Anosy Region Madagascar (04/2019)
Specimen size: 1.4 × 1 × 0.5 cm = 0.55” × 0.39” × 0.20”
Type locality
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