... quality control with national reference material. Applications Metallic Powders Aluminum, zircon, nickel, tungsten, zinc, molybdenum, magnesium, copper, rare metal, alloy, metallic ... , fluorite, zeolite, boron carbide, clay, graphite, quartz, plaster, bentonite, diatomite, zirconium silicate, corundum, mica, titanium oxide Other powders Soil, pigment, sulfur, explosive ...