Gemmology
English | Български
Where am I? > Home > Repository


Gallery view selector

Colour selector
Simple colour schemeredorangey redreddish orangeorangeorangey yellowyellowgreenish yellowyellowish greenslightly yellowish greengreenvery slightly bluish greenbluish greenvery strongly bluish greengreen-blue or blue-greenvery strongly greenish bluevery slightly greenish bluebluevioletish bluebluish violetvioletbluish purplepurplereddish purplestrongly purplish redslightly purplish redcolourlessgreyblack
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

Carnelian — specimen 0021Carnelian — specimen 0021

Weight: 6.56 ct; size: 12.05 | 12.01 | 5.84 mm; shape: square cushion; colour: medium orange; strong. Clean specimen; very good cabochon style cut.
Cordierite — specimen 0025Cordierite — specimen 0025

Weight: 0.21 ct; size: 5.04 | 3.02 | 2.47 mm; shape: oval; colour: medium light blue; very slightly greyish. Very clean specimen; good mixed style cut. Source: Gary Eisenberg, Knoxville, Tennessee.
Grossular-andradite series — specimen 0026Grossular-andradite series — specimen 0026

Weight: 0.51 ct; size: 4.92 | 4.92 | 3.29 mm; shape: round; colour: medium yellow; strong. Very clean specimen; very good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.
Grossular-andradite series — specimen 0027Grossular-andradite series — specimen 0027

Weight: 0.72 ct; size: 6.07 | 4.96 | 3.45 mm; shape: oval; colour: medium light greenish yellow; strong. Very clean specimen; very good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.
Featured
Titanite

— Also known as sphene; a common accessory mineral in intermediate and felsic rocks, pegmatites, and alpine veins; in gneisses, schists, and some skarns (Anthony et al., 2001—2005).

Specimen figured

Titanite — specimen 0313weight: 0.62 ct; shape: round. Very clean specimen; very good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.
Titanite — specimen 0313