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

Oregon sunstone — specimen 0447

— Weight: 0.53 ct; size: 6.03 | 4.12 | 2.88 mm; shape: octagon; colour: light reddish orange; very slightly brownish. Very clean specimen; good step cut style. Source: Gary Eisenberg, Knoxville, Tennessee.

Vesuvianite — specimen 0486

— Weight: 1.45 ct; size: 8.08 | 6.05 | 4.20 mm; shape: oval; colour: dark yellowish green. Very clean specimen; mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.

Hambergite — specimen 0487

— Weight: 0.28 ct; size: 8.34 | 2.59 | 1.87 mm; shape: rectangle; colour: colourless. Very clean specimen; very good step cut style. Source: David Weinberg, Multicolour Gems Ltd.

Hyacinth — specimen 0488

— Weight: 0.43 ct; size: 4.57 | 4.56 | 2.75 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

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.