karenfh
fully equipped rock polisher
Member since November 2006
Posts: 1,495
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Post by karenfh on Mar 30, 2007 17:58:56 GMT -5
Hey, Stoner, here's a challenge for ya. My family has several chunks of the stuff from my dad's spelunking days, including one that has obviously been cut. It's really neat looking, with the inside looking sort of agatey (is that a word??) and the outside a dull brown, poopy look. I was wondering if we could have someone slice several pieces, then polish if necessary, then mount as pendants somehow? I think it would be neat to actually keep the outside 'rind', and perhaps do a kind of melted metal look around the edges. I realize this is kind of bizarre, and I wasn't sure where to ask. Just putting it out there; any and all advice would be great! K
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181lizard
Cave Dweller
Still lurking :)
Member since December 2005
Posts: 2,171
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Post by 181lizard on Mar 31, 2007 13:24:34 GMT -5
Karen...I've seen polished slabs of the forms you're talking about. (don't know which kind it was...hanging down or going up) but they were sliced then polished. I'm thinkin...if it's hard enough, there shouldn't be a problem!
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Post by stoner on Mar 31, 2007 14:58:50 GMT -5
Karen, could you post some pics? I'm always up for a good challenge.
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stefan
Cave Dweller
Member since January 2005
Posts: 14,113
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Post by stefan on Apr 1, 2007 13:36:07 GMT -5
Karen- More likely than not the material is a calcite based mineral called Travintine- it is softer than most tumbling material- BUT it is a dream on the grinder- It takes a real nice shine and can actually be hand polished if you want to try to tackle it- about the only problem with it is that it can have a tendency to fracture in between the rings-
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