Synthetic fire opal

Details Synthetic fire opal Synthetic fire opal

2007-08-10

2008-10-28

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Synthetic precious stones

C501S012000, C501S133000

Reexamination Certificate

active

07442660

ABSTRACT:
A synthetic fire opal having similar physical and chemical properties as natural fire opal. The synthetic fire opal is colored, hard, and transparent. The synthetic fire opal comprises SiO2and water.

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Inverse Opals Photonic Crystals-A laboratory guide, Schroden and Balakrishnan; Univ of Minnesota, Materials Science Research and Engineering Center, 2001, pp. 1-31.

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