Know all about Hawaiite and Pseudotachylite properties here. All properties of rocks are important as they define the type of rock and its application. Hawaiite belongs to Igneous Rocks while Pseudotachylite belongs to Metamorphic Rocks.Texture of Hawaiite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Pseudotachylite is Quench. Hawaiite appears Dull and Soft and Pseudotachylite appears Dull and Soft. The luster of Hawaiite is not available while that of Pseudotachylite is vitreous. Hawaiite is available in black, brown, light to dark grey colors whereas Pseudotachylite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Hawaiite are creating artwork, sea defence and that of Pseudotachylite are creating artwork, gemstone.