Know all about Basalt and Dacite properties here. All properties of rocks are important as they define the type of rock and its application. Basalt and Dacite belong to Igneous Rocks.Texture of Basalt is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Dacite is Aphanitic to Porphyritic. Basalt appears Dull and Soft and Dacite appears Vesicular. The luster of Basalt is not available while that of Dacite is subvitreous to dull. Basalt is available in black, brown, light to dark grey colors whereas Dacite is available in bluish - grey, brown, grey, light to dark grey colors. The commercial uses of Basalt and Dacite are an oil and gas reservoir, commemorative tablets, creating artwork, used in aquariums.