Know all about Hyaloclastite and Tephrite properties here. All properties of rocks are important as they define the type of rock and its application. Hyaloclastite and Tephrite belong to Igneous Rocks.Texture of Hyaloclastite is Pyroclastic whereas that of Tephrite is Aphanitic to Porphyritic. Hyaloclastite appears Dull and Tephrite appears Vesicular. The luster of Hyaloclastite is dull and grainy while that of Tephrite is subvitreous to dull. Hyaloclastite is available in brown, grey, yellow colors whereas Tephrite is available in black, brown, colourless, green, grey, white colors. The commercial uses of Hyaloclastite are cemetery markers, creating artwork and that of Tephrite are production of lime, soil conditioner.