[Rockhounds] Cleaning Galena, Help?

[Lawrence Rush]

Sounds like a good idea, Mark. Since this seems like a physical eroding 
process, I would guess that something like soap powder in a sand blaster 
might also be effective.

Larry
=========================
----- Original Message ----- 
From: "Mark Stanley" <markstanley at bellnet.ca>
To: "Rockhounds at drizzle.com: A mailing list for rock and gem collectors" 
<rockhounds at lists.drizzle.com>
Sent: Wednesday, June 18, 2008 3:54 PM
Subject: Re: [Rockhounds] Cleaning Galena, Help?


> Dear Kevin:
>
> I have successfully used sodium bicarbonate with a sand blaster to 
> brighten
> dull Galena crystals.
>
> I use an enclosed table top sand blasting cabinet.  The sodium bicarbonate
> comes in 20 kg bags from a livestock feed store.  This method can also be
> used to remove many different types of soft coatings on minerals.
>
> Mark Stanley
> Norwood, Ontario, Canada
>
> ----- Original Message -----
> From: <Paintricks at aol.com>
> To: <rockhounds at lists.drizzle.com>
> Sent: Tuesday, June 17, 2008 11:18 PM
> Subject: [Rockhounds] Cleaning Galena, Help?
>
>
>> Hey everybody.  I have some nice Galena crystals that have an  oxidized
>> coating i need off.  It's a dull grey like your tire weights have  after 
>> a
> few
>> thousand miles.  This stuff is beautiful underneath.  Any  suggestions?
>>   Thanks in advance,
>>   Kevin
>
> -- 
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