Know all about Alkali Feldspar Granite and Tephrite properties here. All properties of rocks are important as they define the type of rock and its application. Alkali Feldspar Granite and Tephrite belong to Igneous Rocks.Texture of Alkali Feldspar Granite is Phaneritic whereas that of Tephrite is Aphanitic to Porphyritic. Alkali Feldspar Granite appears Veined or Pebbled and Tephrite appears Vesicular. The luster of Alkali Feldspar Granite is dull to grainy with sporadic parts pearly and vitreous while that of Tephrite is subvitreous to dull. Alkali Feldspar Granite is available in black, grey, orange, pink, white colors whereas Tephrite is available in black, brown, colourless, green, grey, white colors. The commercial uses of Alkali Feldspar Granite are curling, gemstone, laboratory bench tops, tombstones and that of Tephrite are production of lime, soil conditioner.