Gemmology
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Andalusite — specimen 0034, photo © NMNHS
Andalusite — specimen 0034, photo © NMNHS

Andalusitespecimen 0034

Origin

South America
Brazil
Andalusite — specimen 0034, locality map
Data

Weight: 0.55 ct; size: 4.90 | 4.86 | 3.38 mm; shape: round; colour: medium dark reddish orange; strong; clarity: eye clean; cut: very good; treatment: none.
Notes

Very clean specimen; very good mixed style cut. Source: John Bradshaw, Coast to Coast Rare Stones International.

Other specimens
Andalusite — specimen 0033

More information from ‘Classification’


A result of contact metamorphism of argillaceous sediments, also in regionally metamorphosed schists. Rare in granites and pegmatites (Anthony et al., 2001—2005).