Homogeneous granite formed mainly of coarse grained (up to e few centimetres), very dark blue crystals, and in lesser quantity of medium grained, black crystals. Blue crystals change in brightness depending on the direction of the light giving rise to spots of light in the dark ground mass (labradorescence).

Types	Granite
Lieu d'origine	Norvège
Structure	Uniforme
Coloris primaire	Bleu
Coloris secondaire