Gemmology
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Montebrasite — specimen 0542, photo © NMNHS
Montebrasite — specimen 0542, photo © NMNHS

Montebrasitespecimen 0542

Origin

Europe
France
Montebrasite — specimen 0542, locality map
Data

Weight: 0.39 ct; size: 5.48 | 4.77 | 2.96 mm; shape: hexagon; colour: medium light yellowish green; slightly greyish; clarity: eye clean; cut: excellent; treatment: none.
Notes

Very clean specimen; design ‘Hexamixtum S 41-32’, excellent cut by Tan Pen.

More information from ‘Classification’


A late primary and secondary mineral in zoned granite pegmatites; may be an ore of lithium (Anthony et al., 2001—2005). Faceted specimens are relatively rare.