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Actinolite
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Actinolite — specimen 0261, photo © NMNHS
Actinolite
—
specimen 0261
Origin
East Africa
Tanzania
Data
Weight:
0.96 ct;
size:
6.58 | 6.48 | 2.76 mm;
shape:
round;
colour:
medium yellowish green; slightly greyish;
clarity:
translucent;
cut:
fair;
treatment:
none.
Notes
Clean specimen; cabochon style cut with cat’s eye effect.
Other specimens
More information from ‘Classification’
Actinolite
Produced by regional or contact metamorphism of magnesium carbonate,
mafic
, or
ultramafic rocks
(
Anthony et al., 2001—2005
). Faceted specimens are extremely rare.
Gemmology — gemstones
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