Gemmology
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Repository

Some exceptional specimens of gemstones from our ‘Repository’

Repository


The section ‘Repository’ contains data and photos of 745 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

Malaia garnet — specimen 0399Malaia garnet — specimen 0399

Weight: 0.20 ct; size: 3.51 | 3.47 | 2.21 mm; shape: round; colour: medium light strongly purplish red; slightly brownish. Very clean specimen; good brilliant style cut. Source: David Weinberg, Multicolour Gems Ltd.
Andesine — specimen 0410Andesine — specimen 0410

Weight: 0.42 ct; size: 4.99 | 4.94 | 3.24 mm; shape: round; colour: medium red; strong. Very clean specimen; good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.
Oregon sunstone — specimen 0447Oregon 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 0486Vesuvianite — 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.
Featured
Gadolinite-(Y)

— In granite and alkalic granite pegmatites (Anthony et al., 2001—2005). Faceted specimens are extremely rare.

Specimen figured

Gadolinite-(Y) — specimen 0087weight: 2.21 ct; shape: octagon. Clean, opaque specimen; very good step cut style. Source: John Bradshaw, Coast to Coast Rare Stones International.
Gadolinite-(Y) — specimen 0087