On May 15, 2:43 pm, snipped-for-privacy@Example.com wrote:
If you look around on Google you will find reference to a book called
“Industrial Minerals & Rocks: Commodities, Markets, and Uses”, 7th
If you look at the preview in Google Books you will find that on page
153 of the chapter on abrasives it notes that:
“Natural abrasive stones are made from a wide variety of materials
including sandstone, novaculite…The superior cutting quality of some
of these stones is due to the well-disseminated, fine-grained
inclusions of garnet or other minerals of superior hardness.’
It doesn’t specifically mention garnet earlier in a discussion of
novaculite where it notes that material is primarily quartz.
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