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.
1 Lemmings for Lunch. 2  A snowyâs favorite food is a small, hamster-like rodent called a lemming. 3  In years when there are lots of lemmings in an area, youâll find plenty of snowy owls there, too. 4  But when lemming numbers fall, so does the snowy owl population.