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

Variscite — specimen 0077

— Weight: 4.67 ct; size: 20.15 | 8.25 | 3.73 mm; shape: oval; colour: medium light green; slightly greyish. Clean specimen; cabochon style cut.

Rose quartz — specimen 0079

— Weight: 4.31 ct; size: 14.84 | 8.42 | 5.61 mm; shape: oval; colour: very light purple. Very clean specimen; mixed style cut.

Petschite — specimen 0081

— Weight: 0.20 ct; size: 5.06 | 2.97 | 2.08 mm; shape: oval; colour: light blue; very slightly greyish. Very clean specimen; good mixed style cut. Source: Gary Eisenberg, Knoxville, Tennessee.

Petschite — specimen 0082

— Weight: 0.30 ct; size: 5.07 | 3.15 | 2.18 mm; shape: oval; colour: light blue; very slightly greyish. Very clean specimen; good mixed style cut. Source: Gary Eisenberg, Knoxville, Tennessee.

Featured

Cerussite

— Common in the oxidised zone of lead deposits, where it may constitute an important ore (Anthony et al., 2001—2005). Faceted specimens are very rare. The largest faceted stone is a 408 carat from Tsumeb, Namibia (Arem, 1987: 64).

Specimen figured

Cerussite — specimen 0029 — weight: 3.71 ct; shape: octagon. Very clean specimen; very good step cut style. Source: John Bradshaw, Coast to Coast Rare Stones International.