What is silica?

  • (noun): A white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechartelierite.
    Synonyms: silicon oxide, silicon dioxide

Some articles on silica:

Samalayuca Dunes - Industrial Interest in The Dune Fields
... million tons of sand in the Salamayuca dunes can be considered as an enormous potential of silica sand since they are 90 to 95 pure silica (SiO2) ... Silica sand is widely used in what is called "the transforamation industry", for the making of glass, silicates, paints, glass-ceramics and ceramics ... Because the sands start with such a high percentage of silica, such a process is deemed feasible ...
Silicon Monoxide - Formation of SiO
... claimed that SiO formed as an amorphous greenish-yellow substance with a vitreous luster when silica was reduced with charcoal in the absence of metals in an ... found at the interface between the charcoal and silica particles ... Because of the volatility of SiO, silica can be removed from ores or minerals by heating them with silicon to produce gaseous SiO in this manner ...
Silicic
... Silicic is magma or igneous rock rich in silica ... The amount of silica that constitutes a silicic rock is usually put at at least 65 percent ... The main constituents of a silicic rock will be minerals rich in silica-minerals, like silicic Feldspar or even free silica as Quartz ...
Spin Column-based Nucleic Acid Purification
... on the fact that the nucleic acid may bind (adsorption) to the solid phase (silica or other) depending on the pH and the salt content of the buffer, which may be a Tris-EDTA (TE) buffer or Phosphate buffer (use ... such as sodium iodide or sodium perchlorate, DNA binds to silica, glass particles or to unicellular algae called diatoms which shield their cell walls with silica ... was used to purify nucleic acid using glass powder or silica beads under alkaline conditions ...
Silica, Minnesota
... Silica is an unincorporated community in Saint Louis County, Minnesota, United States. ...