Topaz is #8 on the Mohs scale, and toughness is poor due to cleavage. Sources are Australia, Brazil, Madagascar, Mexico, Myanmar(Burma), Namibia, Nigeria, Pakistan, Sri Lanka, and United States. The topaz name came from Topazios, the old Greek name for an island in the Red Sea, now called Zabargad. The island never produced topaz, but …
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On Valentine's Dat 2014 I had my second bad experience buying diamonds and decided to do something about it. I thought there should be a way to calculate exactly how much a diamond is worth at a jewelry store vs. online jewelry store vs. Craigslist.
