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