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Cutting lapis



 
 
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  #1  
Old October 29th 03, 04:16 AM
Pierdas
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Default Cutting lapis

I have an exceptional piece of lapis, that I want to cut. My trim saw uses oil
to cut with. Will oil harm this gemstone?
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  #2  
Old October 30th 03, 03:03 AM
Dave Arens
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Hi,

I have an exceptional piece of lapis, that I want to cut. My trim saw uses oil to cut with. Will oil harm this gemstone?


If I were you, I'd drain the oil from the saw & use water to cut the
lapis.

Lapis is a relatively soft material & water will work fine for keeping
the saw cool & clearing the swarf. If oil is used, the lapis may
absorb enough of it to affect it's appearance. You may also need to
leave the lapis in kitty litter or whatever you use to absorb the oil
for a much longer period of time than a stone like quartz.

Dave
  #3  
Old November 1st 03, 06:04 PM
NE333RO
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I have an exceptional piece of lapis, that I want to cut. My trim saw uses
oil to cut with. Will oil harm this gemstone?


I was taught to use water instead of oil with Lapis but I can't find any
references saying exactly why. I seem to remember that the oil would discolor
the stone. Water works just fine so I never bothered to experiment.
 




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