Know all about Borolanite and Rhomb Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Borolanite and Rhomb Porphyry belong to Igneous Rocks.Texture of Borolanite is Granular whereas that of Rhomb Porphyry is Aphanitic to Porphyritic. Borolanite appears Banded and Foilated and Rhomb Porphyry appears Rough. The luster of Borolanite is greasy to dull while that of Rhomb Porphyry is subvitreous to dull. Borolanite is available in brown, buff, cream, green, grey, pink, white colors whereas Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Borolanite are cemetery markers 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).