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Gemstones, Minerals & Fossils
Gemstones and Minerals
⭐ Gemstone & Mineral Show n Tell
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<blockquote data-quote="Dihusky" data-source="post: 592830" data-attributes="member: 10304"><p>You often have to polish a small window so you're not looking through rumbled surfaces to see what's inside; silk, fractures etc. Size obviously has a major impact, but clarity and colour are important factors as is the overall shape. </p><p></p><p>A well shaped piece of rough, by that I mean a piece where the overall shape suits a particular finished shape, ie round, octagonal, triangular or rectangular will lose upto 80% of it's weight during cutting, badly shaped even more so, this has a major impact of 'quality', so your 1.3ct rough could produce a 0.25ct stone, and that's tiny and to be totally honest a PIA to cut, though some cutters specialise in small stones, 3 - 4ct is pretty much my minimum rough size.</p><p></p><p>A 1.3ct colourful rough I would consider better for direct casting into a piece of 'organic' style jewellery styled around different colourful rough, and any serious gem fossicker probably has jars or stones like these. Sand casting rough stone jewellery in silver is an area I would like to explore as I think they would sell well and it's a good way of value adding these sort of stones if you have the market.</p><p></p><p>I hope this goes a little way to answering your question, the stone I'm seeing looks reasonably clean, the browner end looks to possibly have a fracture line in Pic #3 & 4, but there might be a little trillion in the blue end.</p></blockquote><p></p>
[QUOTE="Dihusky, post: 592830, member: 10304"] You often have to polish a small window so you're not looking through rumbled surfaces to see what's inside; silk, fractures etc. Size obviously has a major impact, but clarity and colour are important factors as is the overall shape. A well shaped piece of rough, by that I mean a piece where the overall shape suits a particular finished shape, ie round, octagonal, triangular or rectangular will lose upto 80% of it's weight during cutting, badly shaped even more so, this has a major impact of 'quality', so your 1.3ct rough could produce a 0.25ct stone, and that's tiny and to be totally honest a PIA to cut, though some cutters specialise in small stones, 3 - 4ct is pretty much my minimum rough size. A 1.3ct colourful rough I would consider better for direct casting into a piece of 'organic' style jewellery styled around different colourful rough, and any serious gem fossicker probably has jars or stones like these. Sand casting rough stone jewellery in silver is an area I would like to explore as I think they would sell well and it's a good way of value adding these sort of stones if you have the market. I hope this goes a little way to answering your question, the stone I'm seeing looks reasonably clean, the browner end looks to possibly have a fracture line in Pic #3 & 4, but there might be a little trillion in the blue end. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
⭐ Gemstone & Mineral Show n Tell
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