• frac sand
  • It is also important as a "frac sand" in oil and gas drilling - loose sand is pumped in a liquid mix under high pressure into a well where the sand grains wedge into and hold open any fractures in the rock, enhancing the extraction of hydrocarbons. (wikipedia.org)
  • Unimin is the world's leading producer of quartz proppants (frac sand) and a major producer of resin coated sand proppants for oil and natural gas stimulation and recovery, and the largest producer of low-iron nepheline syenite for glass, ceramic, paint and plastic applications. (wikipedia.org)
  • Shape
  • St. Peter sandstone, also called "Ottawa Sand" in commercial applications, has a relatively uniform size and shape for each grain. (wikipedia.org)
  • liquids
  • Hamaker constant: A = 6.5×10−20 J. Dielectric strength: 250-400 kV/cm at 20°C Surface tension: 0.300 N/m at 1800-2400 °C Abbe Number: Vd=67.82 Vycor Structure of liquids and glasses "Quartz vs. Fused Silica: What's the Difference? (wikipedia.org)
  • These sorts of glasses can be made of quite different kinds of materials than silica: metallic alloys, ionic melts, aqueous solutions, molecular liquids, and polymers. (wikipedia.org)
  • particles
  • According to the Unified Soil Classification System, silt particle sizes are in the range of 0.002 mm to 0.075 mm and sand particles have sizes in the range of 0.075 mm to 4.75 mm. (wikipedia.org)
  • Fineness
  • Due to its fineness and thinness, fumed silica can easily become airborne, making it an inhalation risk, capable of causing irritation. (wikipedia.org)
  • cement
  • NEOCRETE SL Quartz - Self level grade cement based water dispersed polyurethane mortar with texture and decorative finish. (neogard.com)
  • Proppants
  • Proppants such as sand, aluminum shot, or ceramic beads are frequently injected to hold fractures open after the pressure treatment is completed. (geology.com)
  • often
  • These fluids are used not only to create the fractures in the formation but also to carry a propping agent (often silica sand or sintered bauxite ) which is deposited in the induced fractures. (geology.com)
  • color
  • NeoQuartz Trowel RTS - Decorative color quartz trowel system with Polyaspartic Grout Coat and Seal Coats that allows fast return to service. (neogard.com)
  • NeoQuartz Broadcast RTS - Decorative color quartz broadcast system utilizing Polyaspartic that allows fast return to service. (neogard.com)