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.
Unlike most owls, which are nocturnal, snowy owls are diurnalâthey hunt and are active both day and night. Size relative to a 6-ft (2-m) man: The ghostlike snowy owl has unmistakable white plumage that echoes its Arctic origins. These large owls breed on the Arctic tundra, where females lay a clutch of 3 to 11 eggs.Clutch size depends upon the availability of food, and in particularly lean times a usually monogamous pair of owls may not breed at all.he ghostlike snowy owl has unmistakable white plumage that echoes its Arctic origins. These large owls breed on the Arctic tundra, where females lay a clutch of 3 to 11 eggs. Clutch size depends upon the availability of food, and in particularly lean times a usually monogamous pair of owls may not breed at all.