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Gemstones, Minerals & Fossils
Lapidary
Cleaning Crystal
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<blockquote data-quote="Lefty" data-source="post: 423418" data-attributes="member: 2976"><p>Gday Dappa. Yep, I've gotten ok results using the stuff Heatho mentions. Just be sure to wear safety glasses, gloves etc. I saw a nice quartz cluster a while back that bloke said had been cleaned in hydrochloric acid but you'd want to be extremely careful. Just like any cleaning chemical.</p><p></p><p>If the crystal faces are scaly, oxalic acid may not make them shiny. I've not actually succeeded in getting quartz to etch with anything yet - it's chemically different to glass and a lot harder then most normal glass types - but it might pay not to leave them in solution too long all the same.</p></blockquote><p></p>
[QUOTE="Lefty, post: 423418, member: 2976"] Gday Dappa. Yep, I've gotten ok results using the stuff Heatho mentions. Just be sure to wear safety glasses, gloves etc. I saw a nice quartz cluster a while back that bloke said had been cleaned in hydrochloric acid but you'd want to be extremely careful. Just like any cleaning chemical. If the crystal faces are scaly, oxalic acid may not make them shiny. I've not actually succeeded in getting quartz to etch with anything yet - it's chemically different to glass and a lot harder then most normal glass types - but it might pay not to leave them in solution too long all the same. [/QUOTE]
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Gemstones, Minerals & Fossils
Lapidary
Cleaning Crystal
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