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Author Topic: Skin polishing Sapphires in tumbler  (Read 139 times)

hithwentinuviel

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Skin polishing Sapphires in tumbler
« on: January 21, 2019, 02:05:51 PM »
Hi. I have a bulk amount of rough sapphires that are about 2mm-7mm in size. I am wanting to just skin polish them so when kids are fossicking for them at my gem show, they sparkle. What would be needed grit wise in a tumbler to just skin polish and not eat away too much of the stone. ??? Or would just running them in the tumbler with a bit of water help polish them. ???

Aussie Sapphire

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Re: Skin polishing Sapphires in tumbler
« Reply #1 on: January 21, 2019, 05:20:06 PM »
Hi. I have a bulk amount of rough sapphires that are about 2mm-7mm in size. I am wanting to just skin polish them so when kids are fossicking for them at my gem show, they sparkle. What would be needed grit wise in a tumbler to just skin polish and not eat away too much of the stone. ???

You will need diamond grit - this is expensive and will take a long time.


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Re: Skin polishing Sapphires in tumbler
« Reply #2 on: January 21, 2019, 05:22:45 PM »
Quote
Or would just running them in the tumbler with a bit of water help polish them. ???

NO - it wont really do anything. 

We get asked about this a lot and I usually try and talk people out of it.  We can supply tumbling grade diamond in a very small bowl (preferably vibe tumbler) but it not an easy thing - we dont really recommend trying.

cheers
Leah
Aussie Sapphire - The Lapidary Warehouse

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