Know all about Hornblendite and Tachylite properties here. All properties of rocks are important as they define the type of rock and its application. Hornblendite and Tachylite belong to Igneous Rocks.Texture of Hornblendite is Banded, Foliated, Massive whereas that of Tachylite is Vitreous. Hornblendite appears Foliated and Tachylite appears Glassy. The luster of Hornblendite is vitreous to dull while that of Tachylite is resinous. Hornblendite is available in black, brown, green, grey colors whereas Tachylite is available in black, dark brown colors. The commercial uses of Hornblendite and Tachylite are cemetery markers, commemorative tablets, creating artwork.