- fine-scale twinning
-
микродвойникование
Англо-русский словарь технических терминов. 2005.
Англо-русский словарь технических терминов. 2005.
Cleusonite — General Category Oxide minerals Chemical formula (Pb,Sr)(U4+,U6+)(Fe2+,Zn)(Ti,Fe2+,Fe3+)18(O,OH)38 Strunz classification 0 … Wikipedia
Bath, Somerset — Coordinates: 51°23′N 2°22′W / … Wikipedia
Amethyst — Infobox mineral name = Amethyst category = Mineral variety boxwidth = boxbgcolor = imagesize = caption = formula = Silica (silicon dioxide, SiO2) molweight = color = violet habit = 6 sided prism ending in 6 sided pyramid (typical) system =… … Wikipedia
rock — rock1 rockless, adj. rocklike, adj. /rok/, n. 1. a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geol. a. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable… … Universalium
Rock — /rok/, n. a male given name. * * * I In geology, a naturally occurring and coherent aggregate of minerals. The three major classes of rock igneous, sedimentary, and metamorphic are based on the processes that formed them. These three classes are… … Universalium
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Plagioclase — A photomicrograph of a plagioclase crystal under cross polarized light. The plagioclase crystal shows a distinct banding effect called a Polysynthetic twinning. (unknown scale) General Category … Wikipedia