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Gemstones, Minerals & Fossils
Gemstones and Minerals
Need help identifying a pink stone found at Nundle.
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<blockquote data-quote="WalnLiz" data-source="post: 75667" data-attributes="member: 147"><p>Finished size of stone depends on original size and shape. If you had a round stone like say a marble, and you cut a "Brilliant Cut" from it, you will retain well over 50% of the original stone. Similarly an "Emerald Cut" or "Square Cut" on a stone already close to this shape will not lose much weight when cut.</p><p></p><p>Where the biggest losses occur is when the stone is irregular in size, or thin on the edges, as in all cases the stone requires enough thickness to cut the crown and pavilion with the correct facet angles.</p><p></p><p>A general cross section of stones will result in around 50% loss when cut, but with the right shape some lose as little as 20%. Fractures and imperfections need also be taken into the equation, and this element can substantially decrease the size of the faceted stone. </p><p></p><p>Cheers Wal.</p></blockquote><p></p>
[QUOTE="WalnLiz, post: 75667, member: 147"] Finished size of stone depends on original size and shape. If you had a round stone like say a marble, and you cut a "Brilliant Cut" from it, you will retain well over 50% of the original stone. Similarly an "Emerald Cut" or "Square Cut" on a stone already close to this shape will not lose much weight when cut. Where the biggest losses occur is when the stone is irregular in size, or thin on the edges, as in all cases the stone requires enough thickness to cut the crown and pavilion with the correct facet angles. A general cross section of stones will result in around 50% loss when cut, but with the right shape some lose as little as 20%. Fractures and imperfections need also be taken into the equation, and this element can substantially decrease the size of the faceted stone. Cheers Wal. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
Need help identifying a pink stone found at Nundle.
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