Know all about Essexite and Dacite properties here. All properties of rocks are important as they define the type of rock and its application. Essexite and Dacite belong to Igneous Rocks.Texture of Essexite is Granular whereas that of Dacite is Aphanitic to Porphyritic. Essexite appears Banded and Dacite appears Vesicular. The luster of Essexite is not available while that of Dacite is subvitreous to dull. Essexite is available in dark grey to black colors whereas Dacite is available in bluish - grey, brown, grey, light to dark grey colors. The commercial uses of Essexite are cemetery markers, commemorative tablets, jewelry, sea defence, tombstones and that of Dacite are commemorative tablets, creating artwork.