All about Slate and Coal Properties
Know all about Slate and Coal properties here. All properties of rocks are important as they define the type of rock and its application. Slate belongs to Metamorphic Rocks while Coal belongs to Sedimentary Rocks.Texture of Slate is Foliated whereas that of Coal is Amorphous, Glassy. Slate appears Dull and Coal appears Veined or Pebbled. The luster of Slate is dull while that of Coal is dull to vitreous to submetallic. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas Coal is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Slate are blackboards, commemorative tablets, laboratory bench tops, standard material for the bed of billiard table, standard material for the beds of pool and snooker table, tombstones, used in aquariums, writing slates and that of Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry.