Know all about Tephrite and Greenschist properties here. All properties of rocks are important as they define the type of rock and its application. Tephrite belongs to Igneous Rocks while Greenschist belongs to Metamorphic Rocks.Texture of Tephrite is Aphanitic to Porphyritic whereas that of Greenschist is Foliated, Platy. Tephrite appears Vesicular and Greenschist appears Layered and Shiny. The luster of Tephrite is subvitreous to dull while that of Greenschist is shiny. Tephrite is available in black, brown, colourless, green, grey, white colors whereas Greenschist is available in dark greenish - grey, green colors. The commercial uses of Tephrite are production of lime, soil conditioner and that of Greenschist are blackboards, manufacture of tools, writing slates.