Finnish black-grey, large-grained rock with bluish and yellowish glittering crystals. Overall dark coloration. The stone is quite calm because of its patterning, which makes it a stylish choice for almost any environment. Often contains so-called milk (white rock mass) in the background; some hairline cracks may occur. It should be noted that the size and quantity of crystals vary greatly; in general, there may be some yellow crystals among the blue ones.