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Gemstones, Minerals & Fossils
Lapidary
Approx 100ct Topaz Gem quality (TBC)
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<blockquote data-quote="shivan" data-source="post: 324203" data-attributes="member: 194"><p>Hardness cleavage and specific gravity are the best ways to tell quartz from topaz. </p><p>Topaz can display perfect basal cleavage, has a higher SG of 3.4-3.6 compared to quartz 2.6-2.7 and topaz is harder than quartz with a hardness of 8 compared to quartz 7.</p><p></p><p>If you wanted it cut there are a few people on the forum that do some beautiful cutting or you could contact your local lapidary club and ask them to have a look at it. There are also shops that do cutting, so there are a few options out there.</p></blockquote><p></p>
[QUOTE="shivan, post: 324203, member: 194"] Hardness cleavage and specific gravity are the best ways to tell quartz from topaz. Topaz can display perfect basal cleavage, has a higher SG of 3.4-3.6 compared to quartz 2.6-2.7 and topaz is harder than quartz with a hardness of 8 compared to quartz 7. If you wanted it cut there are a few people on the forum that do some beautiful cutting or you could contact your local lapidary club and ask them to have a look at it. There are also shops that do cutting, so there are a few options out there. [/QUOTE]
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Gemstones, Minerals & Fossils
Lapidary
Approx 100ct Topaz Gem quality (TBC)
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