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

Smoky quartz — specimen 0202

— Weight: 11.11 ct; size: 16.22 | 12.25 | 7.25 mm; shape: octagon; colour: dark reddish orange. Very clean specimen; step cut style.

Jadeite — specimen 0203

— Weight: 3.40 ct; size: 12.25 | 7.89 | 3.81 mm; shape: pear; colour: medium green; slightly greyish. Clean specimen; good cabochon style cut.

Opal — specimen 0211

— Weight: 1.60 ct; size: 10.10 | 6.81 | 3.63 mm; shape: octagon; colour: medium orangey red; very slightly brownish. Very clean specimen of ‘fire opal’ variety; step cut style.

Zircon — specimen 0212

— Weight: 0.94 ct; size: 6.10 | 3.85 | 3.20 mm; shape: octagon; colour: medium light green-blue or blue-green; very slightly greyish. Very clean specimen; good step cut style.

Featured

Bastnäsite-(Ce)

— The most abundant rare earth elements-bearing mineral, typically hydrothermal, although primary igneous occurrences are known; in granite and alkali syenites and pegmatites; in carbonatites (Anthony et al., 2001—2005). Faceted specimens are very rare.

Specimen figured

Bastnäsite-(Ce) — specimen 0280 — weight: 0.75 ct; shape: oval. Very clean specimen; very good mixed style cut.