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05-12-2019, 07:02 PM
Thread: Natural stones grit numbers why?
by Magpie- Replies
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Stones like a sandstone COULD be given a "grit"...
Stones like a sandstone COULD be given a "grit" rating, as its made up of tiny particles, and in theory, they could be measured. stones like Jasper, or Noviculite, its just not possible. But...
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