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.
Like other horned owls, snowy owls have ear tufts but they are small and usually kept tucked away. FACT: Snowy owls feed primarily on lemmings and voles. During the breeding season, snowy owls survive on a diet that consists of lemmings and voles.