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Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
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<blockquote data-quote="Heatho" data-source="post: 507328" data-attributes="member: 487"><p>There are reportedly diamonds in the Shoalhaven river though they are extremely rare I believe. The larger crystal appears to be hexagonal which is totally the wrong crystal shape of rough diamond. The inclusion on the crystal also looks more typical of quartz rather than diamond. If the crystals are large enough and you have some scales that will weigh down to 0.01g you could do a specific gravity test and that will definitely differentiate between diamond and quartz. Most jewellers have diamond testers as well, maybe ask your local jeweller if they can do it for you, only takes about 2 seconds to perform the test.</p><p></p><p>Specific gravity test procedure.</p><p><a href="http://johnbetts-fineminerals.com/jhbnyc/articles/specific_gravity.htm" target="_blank">http://johnbetts-fineminerals.com/jhbnyc/articles/specific_gravity.htm</a></p></blockquote><p></p>
[QUOTE="Heatho, post: 507328, member: 487"] There are reportedly diamonds in the Shoalhaven river though they are extremely rare I believe. The larger crystal appears to be hexagonal which is totally the wrong crystal shape of rough diamond. The inclusion on the crystal also looks more typical of quartz rather than diamond. If the crystals are large enough and you have some scales that will weigh down to 0.01g you could do a specific gravity test and that will definitely differentiate between diamond and quartz. Most jewellers have diamond testers as well, maybe ask your local jeweller if they can do it for you, only takes about 2 seconds to perform the test. Specific gravity test procedure. [url]http://johnbetts-fineminerals.com/jhbnyc/articles/specific_gravity.htm[/url] [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
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