rixrocks
having dreams about rocks
Member since September 2019
Posts: 51
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Post by rixrocks on Feb 8, 2020 10:49:08 GMT -5
Hello. While at Quartzsite last month I picked up two pieces of Prystine Magnesite. It's pure white. I've read that they dye this stone to make fake turquoise. My question is, will cutting this in my slab saw cause discoloration from the oil? I want it to remain pure white. My trim saw which uses water is not big enough to slab this. I haven't found much information on this material.
Anyone work with this?
Thanks for reading.
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Post by rmf on Feb 8, 2020 16:58:40 GMT -5
Try using pure clear mineral oil in the saw. Then ASAP get the rocks out and wash in soapy water.
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herb
spending too much on rocks
Member since November 2011
Posts: 476
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Post by herb on Feb 9, 2020 9:37:47 GMT -5
Magnesite is relatively soft. If it can absorb color enough to pass as imitation turquoise it will probably be able to discolor from whatever is in the oil. As the previous reply mentioned, clean clear mineral oil would be your best bet, but if you can't do that, I've had luck getting oil staining out of some slabs by soaking them in concentrated Simple Green for a couple of days to a week.
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rixrocks
having dreams about rocks
Member since September 2019
Posts: 51
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Post by rixrocks on Feb 9, 2020 9:59:54 GMT -5
Thanks RMF and herb. I will probably just end up cutting one of them in the slab saw and see what happens. I'm not ready to change oil yet so I'll also keep the Simple Green in mind to try to cut any oil staining out if that's the direction I go with.
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gemfeller
Cave Dweller 
Member since June 2011
Posts: 4,061 
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Post by gemfeller on Feb 9, 2020 12:17:15 GMT -5
I'm not familiar with the material but if it's slightly porous, soaking it in water for a week or so before slabbing will help prevent oil from penetrating into the stone. It works with white howlite.
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rixrocks
having dreams about rocks
Member since September 2019
Posts: 51
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Post by rixrocks on Feb 10, 2020 0:43:26 GMT -5
I'm not familiar with the material but if it's slightly porous, soaking it in water for a week or so before slabbing will help prevent oil from penetrating into the stone. It works with white howlite. That sounds like a good plan, gemfeller! Thanks for the tip. |
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