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.
The Burrowing Owl (Athene cunicularia) is a tiny, but long-legged owl found throughout open landscapes of North and South America. Burrowing owls can be found in grasslands, r â¦ angelands, agricultural areas, deserts, or any other dry, open area with low vegetation[1]. They nest and roost in burrows, such as those excavated by prairie dogs (Cynomysspp.). Unlike most owls, burrowing owls are often active during the day, although they tend to avoid the mid-day heat.