- an extremely tough, heavy, even-textured, silica-bearing sedimentary rock used in whetstones.
- a kind of chert, very full of quartz, that's been regularly make whetstones
- multiple siliceous record, of which hones are formulated; shaver stone; Turkey rock; hone stone; whet slate.
- A very difficult, fine-grained rock, useful for hones: same as honestone. It's a tremendously silicious selection of clay slate.
Sentence for "novaculite"
- _whetstones_ are produced largely from a…
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