Chrysoberyl cat's-eye synthetic single crystal

Compositions: ceramic – Ceramic compositions – Synthetic precious stones

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Details

C04B 3544, C30B 2920, C30B 2916

Patent

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046210652

ABSTRACT:
Disclosed is a chrysoberyl cat's-eye synthetic single crystal, which comprises aluminum oxide and beryllium oxide as main component, and 0.005 to 1.050% by weight, based on the total crystal, of at least one member selected from oxides of iron, cerium, vanadium, cobalt, tungsten, chromium, nickel and manganese and 0.005 to 2.0% by weight, based on the total crystal, of at least one member selected from oxides of titanium, tin, zirconium and germanium.
This synthetic single crystal is comparable to natural cat's-eye in the physical properties, color tone and chatoyancy effect.

REFERENCES:
patent: 3912521 (1975-10-01), Cline
patent: 4240834 (1980-12-01), Machida et al.

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