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Gemstones, Minerals & Fossils
Lapidary
Star sapphire advice needed
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<blockquote data-quote="Lefty" data-source="post: 121692" data-attributes="member: 2976"><p>Thanks Dughug.</p><p></p><p>I just tried tin oxide on a soft lap running as fast as it goes. Polished it for about 5 minutes but the result is the same - no discernable effect <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /> </p><p></p><p>Maybe #280 to #600 is too big a jump, even with diamond? Problem is, I don't have anything in between. Not resin-bonded anyway. I do have a #360 diamond flat lap, not sure if I should very carefully touch it to it to see what happens.</p></blockquote><p></p>
[QUOTE="Lefty, post: 121692, member: 2976"] Thanks Dughug. I just tried tin oxide on a soft lap running as fast as it goes. Polished it for about 5 minutes but the result is the same - no discernable effect :( Maybe #280 to #600 is too big a jump, even with diamond? Problem is, I don't have anything in between. Not resin-bonded anyway. I do have a #360 diamond flat lap, not sure if I should very carefully touch it to it to see what happens. [/QUOTE]
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Gemstones, Minerals & Fossils
Lapidary
Star sapphire advice needed
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