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novaculite    
微晶石英质燧石岩; 致密石英岩

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  • Novaculite - Wikipedia
    Novaculite, also called Arkansas Stone, is a microcrystalline to cryptocrystalline rock type that consists of silica in the form of chert or flint It is commonly white to grey or black in color, with a specific gravity that ranges from 2 2 to 2 5 It is used in the production of sharpening stones
  • What is Novaculite? - archeology. uark. edu
    Novaculite is a unique rock found only in the Ouachita Mountains of Arkansas and Oklahoma For American Indians living in this region in the past, novaculite was an essential raw material for manufacturing sharp-edged durable tools Novaculite was quarried from outcrops on mountain ridges
  • Novaculite: Used for making stone cutting tools and sharpening metal . . .
    Novaculite is a dense, hard, fine-grained siliceous rock that breaks with a conchoidal fracture It forms from sediments deposited in marine environments where organisms such as diatoms (single-celled algae that secrete a hard shell composed of silicon dioxide) are abundant in the water
  • Novaculite (Silica Stone) - Arkansas
    Novaculite is a sedimentary rock composed mostly of cryptocrystalline (1-5 micron) quartz and is a recrystallized variety of chert It is dense, hard, white to grayish-black in color, translucent on thin edges, and has a dull to waxy luster
  • Arkansas Novaculite: A Virtual Comparative Collection
    Learn more about sourcing novaculite and the distribution of toolstone from novaculite quarries to ancient communities across the region See a map showing novaculite sources and counties where novaculite artifacts have been found
  • Novaculite: Mineral information, data and localities.
    Novaculite is a uniform, fine-grained hard rock mostly composed of extremely fine-grained to cryptocrystalline quartz It may be white, gray, or black due to impurities (It is not a slate )
  • Novaculite — Composition, Formation Where to Find It
    Novaculite is a dense, extremely fine-grained siliceous sedimentary rock closely related to chert Its remarkably uniform microcrystalline texture has made it the world's premier natural whetstone material for sharpening blades for centuries
  • Novaculite - Projectile Points
    Novaculite are found in beds in the Ouachita mountains of Arkansas and into Oklahoma and the Marathon Uplife and Solitario regions of Texas Has been traded into Missouri, Illinois, and Indiana
  • Novaculite: Identification, Properties Lookalikes
    Novaculite is a white to gray rock It has a hardness of 6 5–7 and a white or no streak
  • Novaculite - Projectile Points
    Silica Fabrics Fossils: Novaculite is a microcrystalline to cryptocrystalline material consisting of silica Typically no fossils are present, but conodonts, sponge spicules, and radiolaria have been reported





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