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Post by rocklicker on Jun 17, 2009 16:46:33 GMT -5
I have a batch of Jamie's chrysocolla going right now. It's at prepolish (tripoli), so I am rounding the bend. Can anyone recommend a good final polish for chrysocolla. I have never tumbled the stuff before so I have no idea what the best way to polish it is. I am used to polishing with cerium. Any thoughts?
Steve
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Post by stonesthatrock on Jun 17, 2009 17:46:58 GMT -5
ralph uses zam but we have never tumbled it
may ann
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Post by Jack ( Yorkshire) on Jun 18, 2009 2:14:16 GMT -5
Hi Steve,
I was going to reply I use Zam !!!!!and May Ann has beat me to it !!
I have some of Jamies Crystacolla and it undercuts a lot in the Vibe, But if you have a different batch it might not have the soft spots in it ,
Check it with a Loupe when you wash it and see if it is a smooth finish or is undercutting
I cut it shape it and then flat lap it and finally polish it with Zam and it really comes up great
Jack
Yorkshire uk
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Post by johnjsgems on Jun 18, 2009 8:33:53 GMT -5
I was told chrome oxide works like Zam when tumbling but never tried it. Really fine aluminum oxides should work also (.2-.3 micron). Vibradry from Diamond Pacific polishes everything in a vibe.
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Jun 19, 2009 3:15:06 GMT -5
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JEFFD
starting to spend too much on rocks
Member since December 2004
Posts: 242
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Post by JEFFD on Jun 19, 2009 17:23:19 GMT -5
I used Aluminum Oxide from the Rockshed. Came out good but not perfect.
Soft spots had a satin finish with the harder places polishing very well.
It was a Lot-o batch.
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Sabre52
Cave Dweller 
Me and my gal, Rosie
Member since August 2005
Posts: 20,496
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Post by Sabre52 on Jun 19, 2009 21:42:36 GMT -5
Yeah, I used Rockshed AO with similar results. Shiny on the hard spots and satin finish on the softer. Still was a really colorful material though.....Mel
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Post by johnjsgems on Jun 20, 2009 13:50:22 GMT -5
Most of the tumbling grade AO polishes are 3-4 micron. That usually works great on harder stones.
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