Know all about Pumice and Picrite properties here. All properties of rocks are important as they define the type of rock and its application. Pumice and Picrite belong to Igneous Rocks.Texture of Pumice is Vesicular whereas that of Picrite is Earthy, Rough. Pumice appears Vesicular and Picrite appears Rough and Shiny. The luster of Pumice is earthy while that of Picrite is subvitreous to dull. Pumice is available in beige, colourless, grey, light green, light grey, pink, white, yellow- grey colors whereas Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors. The commercial uses of Pumice are as a traction material on snow-covered roads, as an abrasive in pencil erasers, fine abrasive used for polishing, manufacture of soap, solvents, dyes, plastics and fibres, used in aquariums and that of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo).