Know all about Picrite and Dacite properties here. All properties of rocks are important as they define the type of rock and its application. Picrite and Dacite belong to Igneous Rocks.Texture of Picrite is Earthy, Rough whereas that of Dacite is Aphanitic to Porphyritic. Picrite appears Rough and Shiny and Dacite appears Vesicular. The luster of Picrite and Dacite is subvitreous to dull. Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors whereas Dacite is available in bluish - grey, brown, grey, light to dark grey colors. The commercial uses of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo) and that of Dacite are commemorative tablets, creating artwork.