Know all about Rhyodacite and Hawaiite properties here. All properties of rocks are important as they define the type of rock and its application. Rhyodacite and Hawaiite belong to Igneous Rocks.Texture of Rhyodacite is Earthy whereas that of Hawaiite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Rhyodacite appears Skeletal and Hawaiite appears Dull and Soft. The luster of Rhyodacite is greasy to dull while that of Hawaiite is not available. Rhyodacite is available in black to grey, dark greenish - grey colors whereas Hawaiite is available in black, brown, light to dark grey colors. The commercial uses of Rhyodacite are cemetery markers, creating artwork and that of Hawaiite are creating artwork, sea defence.