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