raptor Posted February 12, 2009 Report Share Posted February 12, 2009 As the topic mentions, is it possible to identify Sapphire and Mineral Glass (Synthetic Sapphire)? If possible, how? Regards Raptor Link to comment Share on other sites More sharing options...
offshore Posted February 12, 2009 Report Share Posted February 12, 2009 Either buy a hardness tester, if you want to be 99% sure, or run a water beading test, and be reasonably certain. Offshore Link to comment Share on other sites More sharing options...
twinfake Posted February 12, 2009 Report Share Posted February 12, 2009 IMHO the water beading test is not the greatest test. Even on gens it is not a good test. Link to comment Share on other sites More sharing options...
offshore Posted February 12, 2009 Report Share Posted February 12, 2009 Agreed, but better than nothing, if you don't want to shell out for a sapphire tester. Or if you handle them a lot, you can pick with a reasonable amount of accuracy - mainly the sound, when tapped with a fingernail. Offshore Same crystals used in reps and gens anyway. Link to comment Share on other sites More sharing options...
slickdick Posted February 12, 2009 Report Share Posted February 12, 2009 Another way, is to stick the crystal against your forehead saphire is cold, mineral adjusts faster to room temperature. Link to comment Share on other sites More sharing options...
z3k0 Posted February 12, 2009 Report Share Posted February 12, 2009 Another way, is to stick the crystal against your forehead saphire is cold, mineral adjusts faster to room temperature. Interesting point, I'll definitely try this. Just to mention - if you have AR coating on crystal, water beading test is completely useless. regards Link to comment Share on other sites More sharing options...
TeeJay Posted February 12, 2009 Report Share Posted February 12, 2009 A method I've used, is a 'tap test', with the edge of the fingernail on the crystal. Sapphire 'tinks', mineral 'thunks' 1 Link to comment Share on other sites More sharing options...
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