Rh Preyda 100% natural Arkansas stones are made from Novaculite- the ultimate sharpening stone.
Quarried in the Ouachita Mountains, near Hot Springs, Arkansas, Novaculite is not found anywhere else in the world. The unique cryptocrystalline structure of Novaculite allows the stone to retain its effective abrasion characteristic and shape. Sharpening stones are composed of 99.9% pure silica. What makes Novaculite so unique is it’s ability to remove less material than other abrasive products. Because the stone is naturally so durable, it is able to perform for an extended period of time and never require lapping or flattening.

Mined and crafted since prehistoric times, Novaculite was originally used to sharpen and produce the earliest of tools from a simple arrowhead to an axe. Today, the stone is prized for its range of versatility. Exhibiting the ability to maintain tools in pristine condition from the smoothest blade to the sharpest edge, Novaculite stones are applicable to virtually any blade edge industry.

The Soft Arkansas side will bring your edge to basic sharpness and polish. The Hard Black Arkansas side will finish your edge to a smooth, ultra sharp to-the-touch finish.

Soft Arkansas: (medium density) 400-600 Grit

Considered the coarsest of the Arkansas sharpening stones. This stone will provide the initial edge and first level of polishing, but is primarily used for sharpening.

Black Arkansas: (extra fine density) 2000-3000 Grit

Harder and finer than Hard Arkansas. Not as pure black as Surgical Black Arkansas. Coloration is more dark grey than black. This stone will polish finer than Soft and Hard Arkansas stones.

Made in the U.S.A.