[Rockhounds] safest wavellite cleaning method

[Erich Kern]

 Muriatic acid (HCL) will dissolve wavelite quickly. Oxalic acid more slowly. Any acid, even vinnegar will ruin the surface luster. Iron Out is very mildly acidic, so I'd try a piece with iron stains you can afford to lose if it causes dullness of the surface luster. 

An ultrasonic cleaner with a few drops of liquid detergent is the safest bet for your wavellite, but it won't remove stains, only particles adhering to the surface.

Cheers,
Erich Kern
Murrieta, Calif. 


----- Original Message ----- 
From: Clyde 
To: Rockhounds 
Sent: Sunday, July 08, 2007 7:29 AM
Subject: [Rockhounds] safest wavellite cleaning method


Hi Everyone,   My wife and I went to collect wavellite at Mt. Pleasant Mills quarry.  We found some pretty nice specimens and would like to get advice on cleaning them the safest and best way.  At minimum some have limonite coatings, others have a black coating that I don't know what it is.  I have Iron Out, Oxalic acid, and Muratic Acid available.  
Is there any tried and true method or formula?

Thanks in advance,

Clyde

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