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Gemstones, Minerals & Fossils
Gemstones and Minerals
AM Sluices and gemstones
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<blockquote data-quote="Heatho" data-source="post: 51851" data-attributes="member: 487"><p>They won't hold ALL the gems reliably, I've found a few small Sapphires, Zircons and Garnets in mine, heaps of Spinel. Anything round seems to go straight out, seems to me to be the flatter ones that will stay in the riffles, held down by the pressure/negative pressure I guess. </p><p></p><p>I usually let mine sit for a few mins after feeding it to let it clear a bit before cleanout. It needs cleaning out regularly if there is heaps of Black Sand. </p><p></p><p>Any larger round gems would probably get dislodged by other incoming pepples, once material (appart from Gold) gets any momentum it just seems to bounce around and roll out the end. </p><p></p><p>Just my observations, I'd love them to reliably catch all the gems. In a gemstone area I just sieve as normal and classify down to 1/8 of an inch into a tub, then run the classified material through the sluice for any Gold.</p><p></p><p>By design though they are meant to clear stuff lighter than Gold, maybe they do it too well. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Heatho, post: 51851, member: 487"] They won't hold ALL the gems reliably, I've found a few small Sapphires, Zircons and Garnets in mine, heaps of Spinel. Anything round seems to go straight out, seems to me to be the flatter ones that will stay in the riffles, held down by the pressure/negative pressure I guess. I usually let mine sit for a few mins after feeding it to let it clear a bit before cleanout. It needs cleaning out regularly if there is heaps of Black Sand. Any larger round gems would probably get dislodged by other incoming pepples, once material (appart from Gold) gets any momentum it just seems to bounce around and roll out the end. Just my observations, I'd love them to reliably catch all the gems. In a gemstone area I just sieve as normal and classify down to 1/8 of an inch into a tub, then run the classified material through the sluice for any Gold. By design though they are meant to clear stuff lighter than Gold, maybe they do it too well. :) [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
AM Sluices and gemstones
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