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Synthetic Corundum

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NST655351

Synthetic Corundum

Gem Crystal

Description Tabs

Description
Locality: 
Not Known
Class: 
Artefact
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 0.5 × 0.5 cm
Description

A set of five different colored, faceted synthetic corundums. All were produced through Verneuil's flame fusion process.

1.) oval, purple, ceylon cut, 0.9x0.6x0.4cm

2.) round, colorless, brillant cut, 0.7x0.7x0.4cm

3.) cushion, pink, ceylon cut, 0.8x0.7x0.4cm

4.) cushion, blue, ceylon cut, 0.8x0.8x0.5cm

5.) pear shape, colorchange (purple/green), ceylon cut, 1.0x0.5x0.5cm

Mineral Data
What's on the rock

Corundum

Formula: 
Al2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
9.0
Streak: 
White