Method of stabilizing opals
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United States of America Patent
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Jul 23, 2013
Grant Date -
Jun 2, 2011
app pub date -
Nov 30, 2010
filing date -
Nov 30, 2009
priority date (Note) -
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Abstract
The present invention protects opals during processing from rhyolite nodules. An opal containing rhyolite nodule is soaked in a heated polyester resin, styrene (100-42-5) solution for 24 hours per 10 grams of nodule. The rhyolite nodule is dried and sawed into slabs, which are soaked in a heated polyester resin, styrene (100-42-5) solution. The soaked slabs are cut into pieces, cabochons are marked out, and the pieces are rough cut into pre forms. The pre forms are soaked in a heated polyester resin, styrene (100-42-5) solution, beneficially for 24 hours. The pre forms are dried and cut into cabochons, which are soaked (preferably for 24 hours) in a heated polyester resin, styrene (100-42-5) solution. The soaked cabochons are then dried, polished, and air cured.
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