Know all about Coquina and Tephrite properties here. All properties of rocks are important as they define the type of rock and its application. Coquina belongs to Sedimentary Rocks while Tephrite belongs to Igneous Rocks.Texture of Coquina is Clastic whereas that of Tephrite is Aphanitic to Porphyritic. Coquina appears Layered, Banded, Veined and Shiny and Tephrite appears Vesicular. The luster of Coquina is dull to vitreous to submetallic while that of Tephrite is subvitreous to dull. Coquina is available in beige, buff, orange colors whereas Tephrite is available in black, brown, colourless, green, grey, white colors. The commercial uses of Coquina are creating artwork and that of Tephrite are production of lime, soil conditioner.