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Roscoelite in quartz - Brazil (#:MINS9275)

Pearly Roscoelite inclusions in smocky quartz. Roscoelite is a valid Ima specie that belongs to the mica group. Ex. F. Bedognč collection with label.

Formula :
K(V3+,Al)2[(OH)2/AlSi3O10]
System: monoclinic Hardness:2½ Rarity:not common
Strunz id:VIII/H.10-50 - SILICATES
Name origin: For Sir Henry Enfield Roscoe, FRS (7 January 1833 - 18 December 1915), an English chemist particularly noted for early work on vanadium and for photochemical studies.

Specimen weight:86 gr.
Crystal size:40x27x57 mm
Overall size: 40mm x 27 mm x 57 mm

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Roscoelite in quartz - Brazil

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