Granular, Poikiloblastic
Clastic, Granular, Phaneritic, Porphyritic
Black, Brown, Colourless, Green, Grey, Pink, White
Black to Grey, Bluish - Grey, Dark Greenish - Grey, Green, Light Greenish Grey
Dull, Banded and Foilated
Layered, Banded, Veined and Shiny