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Gemstones, Minerals & Fossils
Lapidary
Stones I have cut
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<blockquote data-quote="Lefty" data-source="post: 467590" data-attributes="member: 2976"><p>Gday Dihusky. As I disclosed in the for sale thread, Oxblood citrine is the marketing name for natural amethyst crystals of faceting grade that have been heated in a similar manner to Tanzanite, upon which one form of iron in the crystal lattice which is partly responsable for the purple colour is permanently transformed into a different form of iron, whereupon the colour becomes deep orange. Similar way in which gold tiger eye becomes red tiger eye (though this can apparently occur naturally, though fairly rarely). I got this crystal from Glen Huntly.</p><p></p><p>I think this design has a lot of potential - I've never tried it in anything above RI=1.54, for which it was designed. I might look awesome in higher RI's!</p></blockquote><p></p>
[QUOTE="Lefty, post: 467590, member: 2976"] Gday Dihusky. As I disclosed in the for sale thread, Oxblood citrine is the marketing name for natural amethyst crystals of faceting grade that have been heated in a similar manner to Tanzanite, upon which one form of iron in the crystal lattice which is partly responsable for the purple colour is permanently transformed into a different form of iron, whereupon the colour becomes deep orange. Similar way in which gold tiger eye becomes red tiger eye (though this can apparently occur naturally, though fairly rarely). I got this crystal from Glen Huntly. I think this design has a lot of potential - I've never tried it in anything above RI=1.54, for which it was designed. I might look awesome in higher RI's! [/QUOTE]
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Gemstones, Minerals & Fossils
Lapidary
Stones I have cut
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