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Are there Lab Topaz? Is the hardness the same?

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Curious as to is there lab created topaz? If so, is the hardness the same as natural topaz? Any info. would be appreciated.
asked Mar 2, 2016 by Del Bazemore (120 points)

1 Answer

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Topaz is a fairly common gemstone and there exists little need to lab-produce it. Assuming lab-synthesized topaz is chemically the same composition as natural topaz, it should exhibit the same hardness of 8.
answered May 3, 2016 by hershel (51,320 points)