[Jewelry making - Article 00897] - Re: [Orchid] Patina with stones

[Rick]

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>     I was wondering if anyone knows the effects of liver of sulfur
>     patina on a stone such as carnelian 

    You would have to do a lot more than that to damage carnelian. Liver
    of sulfer will have no affect on the stone. Some chemical patina
    formulas it's a different story. I use some stuff which is a home
    brew of a fellow silversmith. Nasty stuff but it puts a nice black
    patina on silver. I just checked the label but it is unreadable. I
    know it contains some sort of acid. It smokes a little when you open
    the bottle and when you apply it to the silver. I neutralize it by
    dipping the piece in water with baking soda dissolved. He sells it to
    some of the silver and tool suppliers in New Mexico. His brand name
    is the Horizon Tool Co. 

    I of course use this chemical with caution. I have a well ventilated
    (drafty) garage that I work in. So I don't believe there is another
    chapter to the "How Did Rick Hurt Himself Now" book in the making... 

Rick Copeland
Silversmith and Lapidary Artisan
Colorado Springs, Colorado
rockymountainwonders.com
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