Chrysoberyl cat's-eye synthetic single crystal

Details Chrysoberyl cat's-eye synthetic single crystal Chrysoberyl cat's-eye synthetic single crystal

1984-09-21

1986-11-04

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Synthetic precious stones

C04B 3544, C30B 2920, C30B 2916

Patent

active

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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