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Actinolite
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Actinolite — specimen 0075, photo © NMNHS
Actinolite
—
specimen 0075
Origin
South Asia
Sri Lanka
Data
Weight:
1.48 ct;
size:
8.60 | 6.60 | 4.32 mm;
shape:
oval;
colour:
dark yellowish green;
clarity:
eye clean;
cut:
good;
treatment:
none.
Notes
Very clean specimen; mixed style cut; good polish. Source: John Bradshaw,
Coast to Coast Rare Stones International
.
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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