Author: Natural History Museum

formed by high-grade regional metamorphic processes Is a Metamorphic rock Used as Countertops, Decorative Aggregates, Flooring, Interior Decoration Contains Biotite, Chlorite, Feldspar, Garnet, Graphite, Hornblade, Micas

Is a Metamorphic rock formed due to weathering of existing rocks contains Feldspar, Micas, Olivine, Plagioclase, Pyroxene, Quartz etc used as building stones, paving stones, tombstones etc

Is a Metamorphic rock formed by regional metamorphism of argillaceous sediments since their cleavage arose due to deviatoric stress. Contains Albite, Alusite, Biotite, Chlorite, Feldspar, Garnet, Graphite, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz etc. Used as decorative stones in counter tops, floor tiles etc.  

Is a Sedimentary rock either deposited directly as a ferruginous sedimentor created by chemical replacement can be used as a building material, source of iron

Is a Sedimentary rock Contains calcite, Silica, Iron oxide etc

Is a sedimentary rock formed by the compaction of silt and clay-size mineral particles Contains Dolomite, Hematite, Pyrite, Quartz, Silica, Sulfides etc. Used in Cement Manufacture, Construction Aggregate, ceramics industry, pottery etc.

Is a sedimentary rock Formed as chemical rocks, precipitated from warm, supersaturated marine water. Used in road building, glass making, cements etc

Alumino silicate mineral Metamorphased sedimentary rocks Used glass in glass industries  

Is a sedimentary rock Formed by the consolidation and lithification of gravel Used in construction aggregate, tombstones etc Contains clay, sand, silica, silt etc

Is a Igneous rock