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Bertrandite
An elongated white-cream orthoclase matrix studded on all sides with several white, pearlescent and translucent bertrandite bowtie-shaped crystals. One of the groups of bertrandite crystals, particularly well formed of thicker than average blades, resembles a half-closed book measuring 3.9 cm. This specimen seems to be a floater.
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Species
Locality
Mina Golconda, Governador Valadares, Vale do Doce, Minas Gerais,
Added on11/10/2024
Comments
Known provenance
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