how about u give me the answer
environments not conducive to optimum coral growth, is conducive to quartz sandstone.
Usually sandstone is used to supply quartz for making glass.
Usually sandstone is used to supply quartz for making glass.
sandstone
Sandstone has no defined chemical formula. Sandstone is usually composed of quartz grains sometimes cemented together with a variety of minerals. The quartz grains are composed of SiO2 (Silicon dioxide). The cement in a sandstone are often composed of quartz (SiO2) or calcite (CaCO3) or rarely, other minerals.
Maybe lechatelierite? Or crystal (as in quartz glass)?
There could be several rocks used in the making of glass, but the main constituent material used in making glass is quartz. The rock which is used most for supplying the quartz used in glass making is sandstone.
Sandstone is usually composed of grains of quartz with a calcitic or silica based cement.
Sandstone will often contain feldspar, but some sandstones are composed entirely of quartz.
sandstone
QUARTZ SANDSTONE
Sandstone is a type of clastic sedimentary rock with sand-sized minerals or sand grains. Its two chief minerals are quartz and feldspar.