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Gemstones, Minerals & Fossils
Gemstones and Minerals
Faceting Spinel (Blackjack)
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<blockquote data-quote="Wally69" data-source="post: 452127" data-attributes="member: 1916"><p>I like the hardness and evenness of the cutting as it gives good control over the meet points but getting a good polish does take a bit of time. Decided to keep the step cut larger and add a small star facet. I was going to make them frosted for a bit of an experiment but ended up cutting them with my polishing lap to make them shine.</p><p></p><p>Have struggled with my final polishing lap getting contaminated by a chip of stone or a stray large bit of diamond and have left a few fine scratches in this stone, but I think it turned out well and I have a good appreciation for black spinel now. </p><p></p><p>Sorry the photo is a bit poor, this is the best I can do on my iPad after about 50 shots.</p><p></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/1916/1542243360_6d78abd7-deed-4afe-a556-c1e7bf706d29.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/1916/1542243711_ff3dad77-bce6-4c26-bfa4-662a05a1d453.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/1916/1542243976_8aebaaac-6986-4797-8061-5e40b35add7b.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Wally69, post: 452127, member: 1916"] I like the hardness and evenness of the cutting as it gives good control over the meet points but getting a good polish does take a bit of time. Decided to keep the step cut larger and add a small star facet. I was going to make them frosted for a bit of an experiment but ended up cutting them with my polishing lap to make them shine. Have struggled with my final polishing lap getting contaminated by a chip of stone or a stray large bit of diamond and have left a few fine scratches in this stone, but I think it turned out well and I have a good appreciation for black spinel now. Sorry the photo is a bit poor, this is the best I can do on my iPad after about 50 shots. [img]https://www.prospectingaustralia.com/forum/img/member-images/1916/1542243360_6d78abd7-deed-4afe-a556-c1e7bf706d29.jpg[/img] [img]https://www.prospectingaustralia.com/forum/img/member-images/1916/1542243711_ff3dad77-bce6-4c26-bfa4-662a05a1d453.jpg[/img] [img]https://www.prospectingaustralia.com/forum/img/member-images/1916/1542243976_8aebaaac-6986-4797-8061-5e40b35add7b.jpg[/img] [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
Faceting Spinel (Blackjack)
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