Dirty Quartz

[Cappy Z.]

What is the very best way to get this 6 inch wide piece of dirty quartz 'pristine' clean? Is that even possible? The mini slab? was a gift and I'd like to have look it's best.

Thanks,

Cap Z.

 

[marinedad]

maybe muriatic acid, stuff used to etch concrete. but wait until you get other oppinions cappy as i'm not 100% sure.

 

[Rasputin]

Cappy--muriatic (hydrochloric) acid probably won't do much for you. You're nemesis here is iron staining. Instead soak it in a solution of oxalic acid. Use three parts water to one part oxalic acid crystals. Be sure to use gloves and a mask as it is dangerous to breathe in. Be sure to post an "after" picture. Good luck!

 

[travelorian]

Where can one purchase this oxalic acid? I have the same iron staining problem.

 

[travelorian]

I found this...

http://www.johnbetts-fineminerals.com/jhbnyc/articles/minclean.htm

 

[Cappy Z.]

First of all a big thanks to everyone who responded. I did read the travelorian link and it was very very educational. Not that I am lazy, but it is more time consuming than I ever imagined. However, more importantly is safety. Wow. Apparently these acids are quite toxic.

So anyway, eventually I will attempt to clean the quartz. But after reading the toxicity report I am taking my good old time before I start the project.

Thanks again.

 

[lordpiney]

cappy, muriatic acid will remove all the haze, and staining from the outside of that quartz. you can usually find it at a pool supply store.

 

[uthunter]

Nice piece...

Muiratic acid can be found at most hardware stores, same with oxalic acid tho it is not as common.

I use both for refining my panned gold if it has a high iron content. Works good.

Whichever you choose, DO IT OUTSIDE. The fumes are hazardous and smell horrendous.

Yes cleaning crystals if not a fun job, start asking around the local rock shops, some do this service some don't. The local rock club may know someone who does it as well.

Good Luck

 

[High Plains Digger]

Muratic acid at Home depot comes in a box with 2, 1gallon jugs for around 10 bucks. Good for your toilet, too. But I purchased oxalic acid at a pharmacy. I watched the guys in Ark. heat up a huge caldron of it (outside, of course) and throw all their crystals in it. I have found that although slower, it works nicely without heat. I put some with crystals in it several years ago and have pretty much forgotten about it, although the crystals are nice and clean. That happened in a couple of days, I think. Stay away from the fumes of muratic acid. Nasty stuff. If you pour it in your toilet, get out fast and close the door.

 

[Arid-Zone-A-seeker]

Cappy, Oxalic acid is used in the fruit canning business. All acid can be nasty stuff. but oxalic is usefull for stones and cleaning iron stains.
It is what 'wood bleach' is made of. A way to speed up the process of cleaning stones or even iron parts is to use a old crock pot, out of doors. Find one at a yard sale, cause you won't be able to use it for cooking any more. Check out some of the crystal cleaning site's on the web. There is a bunch of them, and it is easy,