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.
1 Snowy owls live farther north than any other kind of owl in North America! 2  Fine Feathers! 3  A dense coat of feathers keeps a snowy owl warm during frigid winters. 4  Even the owlâs toes and claws are thickly feathered! 5  Early Risers. 6  Most owls sleep during the day and are active at night.
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.