Gemmology
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Repository

Some exceptional specimens of gemstones from our ‘Repository’

Repository


The section ‘Repository’ contains data and photos of 760 specimens of gemstones. The smallest is just 1.96 mm (0.02 ct) ruby from Mozambique, and the largest — 70.11 mm (326.60 ct) rock crystal from Africa.

Additionally there are 8 specimens of synthetic stones.

More specimens of gemstones

Indicolite — specimen 0043Indicolite — specimen 0043

Weight: 0.29 ct; size: 4.17 | 4.16 | 2.70 mm; shape: round; colour: light bluish green; strong. Very clean specimen; very good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.
Milky quartz — specimen 0044Milky quartz — specimen 0044

Weight: 1.76 ct; size: 9.89 | 7.82 | 4.48 mm; shape: oval; colour: very light grey. Very clean specimen; good mixed style cut.
Malaia garnet — specimen 0048Malaia garnet — specimen 0048

Weight: 1.10 ct; size: 6.54 | 5.48 | 3.90 mm; shape: oval; colour: light red; very slightly brownish. Very clean specimen; good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.
Hyacinth — specimen 0051Hyacinth — specimen 0051

Weight: 0.42 ct; size: 4.52 | 4.50 | 2.65 mm; shape: round; colour: medium light yellow; very slightly brownish. Very clean specimen; very good brilliant style cut. Source: David Weinberg, Multicolour Gems Ltd.
Featured
Actinolite

— Produced by regional or contact metamorphism of magnesium carbonate, mafic, or ultramafic rocks (Anthony et al., 2001—2005). Faceted specimens are extremely rare.

Specimen figured

Actinolite — specimen 0075weight: 1.48 ct; shape: oval. Very clean specimen; mixed style cut; good polish. Source: John Bradshaw, Coast to Coast Rare Stones International.
Actinolite — specimen 0075