Know all about Shale and Hawaiite properties here. All properties of rocks are important as they define the type of rock and its application. Shale belongs to Sedimentary Rocks while Hawaiite belongs to Igneous Rocks.Texture of Shale is Clastic, Splintery whereas that of Hawaiite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Shale appears Muddy and Hawaiite appears Dull and Soft. The luster of Shale is dull while that of Hawaiite is not available. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Hawaiite is available in black, brown, light to dark grey colors. The commercial uses of Shale are creating artwork, pottery and that of Hawaiite are creating artwork, sea defence.