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.
In winter, snowy owls can be found in Canada and the northern United States, Iceland, the British Isles, northern Europe, central Russia, northern China and Sakhalin. Though they are usually found in the arctic, every few years, snowy owls spend the winter much farther south that the arctic.