mondeluz Posted May 24, 2016 Share Posted May 24, 2016 Greetings! I have these cool looking volcanic minerals that contained quartz (SiO2). And I was wondering... Is It possible to ''dissolve'' SiO2 with a type of acid or something similar? Link to comment Share on other sites More sharing options...
swansont Posted May 24, 2016 Share Posted May 24, 2016 Yes. "All forms of silica dissolve in molten natron (Na2CO3) or potash (K2CO3) to form silicates" http://www.quartzpage.de/gen_chem.html Link to comment Share on other sites More sharing options...
John Cuthber Posted May 24, 2016 Share Posted May 24, 2016 Greetings! I have these cool looking volcanic minerals that contained quartz (SiO2). And I was wondering... Is It possible to ''dissolve'' SiO2 with a type of acid or something similar? Water will do. It needs to be hot and under pressure. But that's the way they grow quartz crystals for watches and such. Link to comment Share on other sites More sharing options...
MigL Posted May 27, 2016 Share Posted May 27, 2016 If its an acid you're looking for, hydrofluoric acid will etch glass or quartz. Be careful with that ( google the hazards, its nasty stuff ) Link to comment Share on other sites More sharing options...
foxy john Posted May 29, 2016 Share Posted May 29, 2016 Hydrofluoric acid will dissolve quartz, ( and glass - I used to work in a lab with windows etched by HF ). You do not want to play with HF. Link to comment Share on other sites More sharing options...
Strange Posted May 29, 2016 Share Posted May 29, 2016 Hydrofluoric acid will dissolve quartz, ( and glass - I used to work in a lab with windows etched by HF ). You do not want to play with HF. It may dissolve the rest of the rock as well! (I am assuming, perhaps wrongly, that the OP wanted to remove the quartz inclusions from the volcanic rock....) Link to comment Share on other sites More sharing options...
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