Know all about Alkali Feldspar Granite and Slate properties here. All properties of rocks are important as they define the type of rock and its application. Alkali Feldspar Granite belongs to Igneous Rocks while Slate belongs to Metamorphic Rocks.Texture of Alkali Feldspar Granite is Phaneritic whereas that of Slate is Foliated. Alkali Feldspar Granite appears Veined or Pebbled and Slate appears Dull. The luster of Alkali Feldspar Granite is dull to grainy with sporadic parts pearly and vitreous while that of Slate is dull. Alkali Feldspar Granite is available in black, grey, orange, pink, white colors whereas Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors. The commercial uses of Alkali Feldspar Granite are curling, gemstone, laboratory bench tops, tombstones and that 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.