For myself, it would be a refractometer. You can use FTIR- spectrometer for Unheated sapphire. If you do not have an FTIR, you can use a microscope to test the Unheated/heated treatment.
Like most separations of natural or synthetic, and treatments, magnification is the key. A good microscope and an even better education is what is required. Refractometers and most other attainable/affordable tools are of little to no use for this.
Joined: Sun Oct 16, 2005 12:22 pm Posts: 21602 Location: San Francisco
1bwana1 wrote:
Like most separations of natural or synthetic, and treatments, magnification is the key. A good microscope and an even better education is what is required. Refractometers and most other attainable/affordable tools are of little to no use for this.
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