Know all about Granulite and Rhomb Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Granulite belongs to Metamorphic Rocks while Rhomb Porphyry belongs to Igneous Rocks.Texture of Granulite is Granoblastic whereas that of Rhomb Porphyry is Aphanitic to Porphyritic. Granulite appears Veined or Pebbled and Rhomb Porphyry appears Rough. The luster of Granulite is vitreous while that of Rhomb Porphyry is subvitreous to dull. Granulite is available in black, brown colors whereas Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Granulite are curling, gemstone, laboratory bench tops, soil conditioner, tombstones and that of Rhomb Porphyry are an oil and gas reservoir, as a feed additive for livestock, metallurgical flux, soil conditioner, source of magnesia (mgo).