Know all about Hawaiite and Gossan properties here. All properties of rocks are important as they define the type of rock and its application. Hawaiite belongs to Igneous Rocks while Gossan belongs to Metamorphic Rocks.Texture of Hawaiite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Gossan is Rough, Sandy. Hawaiite appears Dull and Soft and Gossan appears Dull and Banded. The luster of Hawaiite is not available while that of Gossan is metallic. Hawaiite is available in black, brown, light to dark grey colors whereas Gossan is available in brown, brown- black, gold, green, rust colors. The commercial uses of Hawaiite are creating artwork, sea defence and that of Gossan are cemetery markers, commemorative tablets, gemstone.