PLEASE do NOT use muratic acid on that cluster, it will ruin it! Prospectors use muratic acid to free gold trapped in quartz at times, BECAUSE it eats away quartz! I do not suggest doing this to that nice cluster!!!!
That is my bad. I was thinking that Muratic acid's componet was hydrofluoric acid. I got it confused with hydrochloric acid. So I admit I am incorrect, however I still would not use muratic acid on any of my specimens. That is just my preference! Sorry for any confusion I may have caused!I have used 30+% Muratic and never had it eat away my quartz. I think you need hydrofluoric acid for that.
That is my bad. I was thinking that Muratic acid's componet was hydrofluoric acid. I got it confused with hydrochloric acid. So I admit I am incorrect, however I still would not use muratic acid on any of my specimens. That is just my preference! Sorry for any confusion I may have caused!