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Gemstones, Minerals & Fossils
Lapidary
Wavey tiger eye
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<blockquote data-quote="Lefty" data-source="post: 222560" data-attributes="member: 2976"><p>This was actually the first time I had used cerium on the stuff. The few bits I had done before had little pits in the surface that packed full of the white tin oxide powder that I had tried to polish it with, leaving a white-speckled surface. I had even rubbed it with a cake of soap to fill the pits and keep out the oxide but to no avail. But this stuff didn't get those little bits pulling out of the surface, possibly because the wavy shape of the fibres made them harder to pull out than straight ones.</p><p></p><p>You can't really see it in the photo but the cerium put a nice, liquid-looking polish on it. I was told recently that zirconium oxide is often a lot faster for polishing macro-crystalline quartz (ie, quartz crystals) but that cerium is still the best for micro/cryptocrystalline quartz such as agate and tiger eye.</p></blockquote><p></p>
[QUOTE="Lefty, post: 222560, member: 2976"] This was actually the first time I had used cerium on the stuff. The few bits I had done before had little pits in the surface that packed full of the white tin oxide powder that I had tried to polish it with, leaving a white-speckled surface. I had even rubbed it with a cake of soap to fill the pits and keep out the oxide but to no avail. But this stuff didn't get those little bits pulling out of the surface, possibly because the wavy shape of the fibres made them harder to pull out than straight ones. You can't really see it in the photo but the cerium put a nice, liquid-looking polish on it. I was told recently that zirconium oxide is often a lot faster for polishing macro-crystalline quartz (ie, quartz crystals) but that cerium is still the best for micro/cryptocrystalline quartz such as agate and tiger eye. [/QUOTE]
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Gemstones, Minerals & Fossils
Lapidary
Wavey tiger eye
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