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A very hard, dense, even-textured, silica-bearing sedimentary rock used in whetstones.

[Latin novācula, razor + -ite.]


(Geological Science) a fine-grained dense hard rock containing quartz and feldspar: used as a whetstone
[C18: from Latin novācula sharp knife, razor, from novāre to renew]


(noʊˈvæk yəˌlaɪt)

a very hard sedimentary rock, similar to chert, composed essentially of microcrystalline quartz.
[1790–1800; < Latin novācul(a) razor + -ite1]
References in periodicals archive ?
by James Archer Smith, the company began as a mining and sales operation of novaculite, the mineral used in whetstones.
Also of dirt dobbers, nightcrawlers, martin houses, honey, and whetstones from the Novaculite Uplift.
Silica stone" is an industrial term for materials such as quartzite, novaculite and other microcrystalline quartz rocks.
Founded in 1886 by the current president's great-grandfather, Smith's started as a stone company selling raw Novaculite stone, which is found in commercial deposits within a 15- to 20-mile radius around Hot Springs.
Gesner Id and Number Gesner Location Schorl GN1075 Connick's Mills, Waewig River Novaculite or Hone Campobello Slate GN 1253 Fossil Corallines Digdeguash River GN1363.
Don't even bother with an Arkansas stone, DBK steel is harder than Novaculite so you'll only be carving up your whetstone.
Novaculite stones, also known as Arkansas whetstones, are the slabs of natural rock most of us grew up with.
Another knife blade, almost opaque, is made from Novaculite, which is found in the Ouachita National Forest area of Arkansas.