Know all about Dacite and Blue Granite properties here. All properties of rocks are important as they define the type of rock and its application. Dacite and Blue Granite belong to Igneous Rocks.Texture of Dacite is Aphanitic to Porphyritic whereas that of Blue Granite is Phaneritic. Dacite appears Vesicular and Blue Granite appears Shiny. The luster of Dacite and Blue Granite is subvitreous to dull. Dacite is available in bluish - grey, brown, grey, light to dark grey colors whereas Blue Granite is available in black, brown, light to dark grey, white colors. The commercial uses of Dacite are commemorative tablets, creating artwork and that of Blue Granite are cemetery markers, commemorative tablets, creating artwork, curling.