Simulated diamond gemstones formed of aluminum nitride and alumi

Details Simulated diamond gemstones formed of aluminum nitride and alumi Simulated diamond gemstones formed of aluminum nitride and alumi

1998-10-09

2000-04-11

Group, Karl

Compositions: ceramic

Ceramic compositions

Synthetic precious stones

501 92, 501 984, 63 32, C03B 2936, C03B 2938

Patent

active

060488131

ABSTRACT:
Simulated diamond gemstones are produced by faceting and polishing bulk single crystals of colorless synthetic aluminum nitride or aluminum nitride:silicon carbide alloys.

REFERENCES:
patent: Re34861 (1995-02-01), Davis et al.
patent: 5723391 (1998-03-01), Hunter et al.
patent: 5858086 (1999-01-01), Hunter
patent: 5882786 (1999-03-01), Nassau et al.
patent: 5954874 (1999-09-01), Hunter
patent: 5972109 (1999-10-01), Hunter
Hurlbut, Cornelius S. and Kammerling, Robert C. "Gemology" 2nd Edition pp. 309-324 (1991) no month.

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