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