Know all about Blue Granite and Tephrite properties here. All properties of rocks are important as they define the type of rock and its application. Blue Granite and Tephrite belong to Igneous Rocks.Texture of Blue Granite is Phaneritic whereas that of Tephrite is Aphanitic to Porphyritic. Blue Granite appears Shiny and Tephrite appears Vesicular. The luster of Blue Granite and Tephrite is subvitreous to dull. Blue Granite is available in black, brown, light to dark grey, white colors whereas Tephrite is available in black, brown, colourless, green, grey, white colors. The commercial uses of Blue Granite are cemetery markers, commemorative tablets, creating artwork, curling and that of Tephrite are production of lime, soil conditioner.