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Removing hard crust from amethyst


#1

Hi, I’m wanting to know a good, safe and reliable method to remove the hard concrete like substance around amethyst crystals. I read somewhere about soaking it in vinegar. I did this for a few weeks and it didn’t seem to work well.
I’ve used soapy water and abrasive scourer, soaking in vinegar and even tried chipping it off.
Any advice?


#2

Hi there,

CLR is available at most chain grocery stores. I was told it is the only way except grinding it off. Just soak it in the CLR I don’t believe it will it will hurt the stone.

Good Luck!!


#3

I would cut it with a gem saw


#4

Ah ok, not sure I can get CLR here in Cambodia lol

Thanks


#5

Soak it in a glycolic acid solution; link to DuPont Chemical white sheet below. If that doesn’t do the trick soak it in a citric acid solution. Both options are less costic than using muriatic acid (hydrochloric acid).

Thomas Harter
(Opal.Tiki)