Gemmology
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Almandine — specimen 0643, photo © NMNHS
Almandine — specimen 0643, photo © NMNHS

Almandinespecimen 0643

Origin

East Africa
Madagascar
Almandine — specimen 0643, locality map
Data

Weight: 0.66 ct; size: 5.90 | 3.89 | 2.80 mm; shape: octagon; colour: medium dark slightly purplish red; strong; clarity: eye clean; cut: excellent; treatment: none.
Notes

Very clean specimen; design ‘Octangulum’, excellent cut by Tan Pen.

Other specimens
Almandine — specimen 0649Almandine — specimen 0632Almandine — specimen 0236Almandine — specimen 0430

More information from ‘Classification’


The most common garnet; typically in mica schists and gneisses, from regionally metamorphosed argillaceous sediments; in granites and eclogites; in sedimentary rocks (Anthony et al., 2001—2005).