Xenoblastic refers to metamorphic mineral with poorly formed crystal faces (equivalent to anhedral). Foliation is a general term for pervasive planar structures. Typically the result of fine-scale compositional layering and alignment of minerals.
Habitat and range. Snowy owls live on arctic tundra, open grasslands and fields, and even on frozen stretches of water. When they migrate into northern Minnesota they are sometimes seen hunting for food in railroad yards and other city areas. They usually perch on the ground or on buildings or utility poles.
Blakiston's fish owl, the largest owl in the world, makes its home in old growth forests surrounding streams and rivers in Russia's Far East, east China, and Japan. But due to rapidly disappearing habitats, the huge birdsâfemales can hit 10 pounds, which is a lot to fly withâare in decline.