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Relichunter2016

Mineral specimen prep services?

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Anyone know of any reputable mineral prep services in California who  cleaning of specimens ?  The only one i know of is collectors edge in Colorado...

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Not that I could recommend anyone but what have you got? Gold in quartz or something else?

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Not sure if Crystalle in Laguna Beach does or not.

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What about the Mockingbird Mine people? They put out some nice specimens.

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1 hour ago, GeoJack said:

What about the Mockingbird Mine people? They put out some nice specimens.

Good point, didn't think of that....think Wayne and Donna down in Laguna source it out...but not sure..may give them a buzz. 

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I used a local source on some of my first specimens but stopped after I had to ask for the gold that dropped out of the rock during the HF bath.

"Oh, you wanted that gold as well?". Uh, yeah, that 3 grams would be nice to have.

Also, used tongs on the specimen as it was retrieved from the solution, knocking even more gold from the piece.

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Sierra Chemicals has the fluids, I'm going down to get some more 35% hydrogen peroxide that I used to "boil" off the calcite on specimens.

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Not that I want any but can you obtain hydrofluoric acid these days and if so...how much does it cost??

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On 1/20/2019 at 12:26 PM, GeoJack said:

I used a local source on some of my first specimens but stopped after I had to ask for the gold that dropped out of the rock during the HF bath.

"Oh, you wanted that gold as well?". Uh, yeah, that 3 grams would be nice to have.

Also, used tongs on the specimen as it was retrieved from the solution, knocking even more gold from the piece.

You can use Teflon tape to wrap or tie the specimens for dunking in the hfl acid. Teflon is impervious to hfl acid.

Could also weave a specimen "basket" with  using Teflon tape.

Edited by Morlock

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