Hard Arkansas Stones & Diamond EZE Laps for recutting and polishing sears and general cleanup of rough surfaces, polishing, and sharpening operations. Note that are new EZELaps Sear Stones for the G2, Encore and ProHunters are now multi purpose for the Contenders. One end is cut at the 80 degree while the other end is milled for the Contender applications.
General history and information about Arkansas stones.
In the Ouachita mountains stretching from East Hot Springs, Arkansas, west into Eastern Oklahoma, occurs a nearly pure silica rock formation known as Novaculite. The age of these formations is estimated to be more than 340 million years. This sedimentary rock type derived it's name from the latin work "Novacula" meaning sharp knife. Novaculite rock is the rarest and finest abrasive stone in existence.
Novaculite is a compact quartzose rock of almost pure silica content. The technical advantages of the Natural Arkansas oilstone are derived from the crystalline structure of the individual quartz grains comprising more than 99 percent of Novaculite rocks. Voids and exposure of crystalline edges enhance the sharpening ability of this natural abrasive.
Two basic classifications of whetstone are known as Hard Arkansas and Soft Arkansas. The Hard Arkansas is very fine grained, hard and compact, with an uneven conchodial fracture. Novaculite is typically a white stone but may be found in blue, pink, grey, black, brown or yellow tints due to the amount and nature of the minute impurities present. The Soft Arkansas resembles unglazed porcelain and has approximately the same composition as the Hard Arkansas stone. It is relatively less compact resulting in high porosity and less density.
Soft Arkansas (medium) is the most popular of the four grades. It is used by wood carvers, sportsmen, butchers, commercial knife sharpeners, and others who desire a keen, polished edge on their knives and tools in a minimum time.
Hard Select Arkansas (fine) is most suitable for fine polishing and the maintenance of a fine edge on knives or tools.
Black and Translucent (extra fine) stones are classifications included in the True Hard Arkansas grade category according to specific gravity density standards. True Hard terminology was adopted to include all extra fine stones regardless of color. Black Arkansas stones are black or blue-black in color. Translucent stones may be a translucent shade of gray, white, yellow, brown, or sometimes pink. They are most commonly used for industrial applications where an extremely fine polish is desired.