Preciosa

The Masters of Crystal

Synthetic Corundum

Corundum
Synthetic corundum, in the form of synthetic ruby, was the first gemstone reproduced by artificial techniques. Auguste Victor Louis Verneuil invented the flame-fusion technique (now know as the Verneuil method) of melting aluminum oxide and allowing it to recrystallize in a cone-shaped boule, the colour of which can be controlled by the addition of chemical additives.

Colours available:

  Ruby Dark

Ruby Medium

Characteristics:
Synthetic monocrystal corundum
Chemical Composition:  Al2O3
Structure: trigonal
Hardness (şMohs): 9
Density: 3,97
Refractive Index: 1,77
Dispersion (C-F): 0,011
Heat Resistance: up to 1700°C / 3092°F

8.4.2008 23:57:30 | read 15879x

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