Columbia Willamette Faceters Guild » Evaluate Rough http://www.facetersguild.com Turning Pretty Rocks into Pretty Awesome Gemstones Mon, 06 Sep 2010 22:44:14 +0000 http://wordpress.org/?v=2.9.1 en hourly 1 Refractol to Identify Flaws & Color Zoning http://www.facetersguild.com/2010/01/using-refractor/ http://www.facetersguild.com/2010/01/using-refractor/#comments Wed, 13 Jan 2010 22:22:03 +0000 Kathryn http://www.facetersguild.com/?p=387
  • Identifying Gem Materials
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    Refractor is a common material used to examine “inside” a stone. Here’s a great explanation in how to use refractol found at TheImage.com.

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    1. Identifying Gem Materials

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