- Carlsbad twinning
- карлсбадское двойникование
English-russian dictionary of physics. 2013.
English-russian dictionary of physics. 2013.
feldspar — /feld spahr , fel /, n. any of a group of minerals, principally aluminosilicates of potassium, sodium, and calcium, characterized by two cleavages at nearly right angles: one of the most important constituents of igneous rocks. Also, felspar.… … Universalium
Microcline — Optical properties Microcline Microcline feldspar Crystal System: Triclinic Color in PPL … Wikipedia
Orthoclase — General Category Silicate mineral Chemical formula KAlSi3O8 … Wikipedia
Irvine, California — City of Irvine City Irvine Business Complex … Wikipedia
List of twin towns and sister cities in Europe — This is a list of twin towns or sister cities in the continent of Europe that is, pairs of towns or cities in different countries which have town twinning arrangements. Where known, the date of formation of the twinning agreement is included in… … Wikipedia
Selenite — This article is about the mineral: for other meanings, see Selenite (disambiguation). Selenite, satin spar, desert rose, and gypsum flower are four varieties of gypsum; all four varieties show obvious crystalline structure. The four crystalline… … Wikipedia
Los Angeles — L.A. redirects here. For other uses, see La. This article is about the U.S. city. For other uses, see Los Angeles (disambiguation). Los Angeles City … Wikipedia
Twin cities (geographical proximity) — Twin cities are a special case of two cities or urban centres which are born in close geographic proximity and then grow into each other over time. The term Twin Cities in the United States refers specifically to the cities Minneapolis and Saint… … Wikipedia
Aragonite — is a carbonate mineral, one of the two common, naturally occurring polymorphs of calcium carbonate, CaCO3. The other polymorph is the mineral calcite. Aragonite s crystal lattice differs from that of calcite, resulting in a different crystal… … Wikipedia
Diamond clarity — Part of a series on Diamonds Material Material properties Crystallographic defects Formatio … Wikipedia
Hyalophane — Infobox mineral name = Hyalophane category = Tectosilicate boxwidth = boxbgcolor = imagesize = caption = formula = (K,Ba) [Al(Si,Al)Si2O8] molweight = 302.06 gm color = colorless, yellow, white, red habit = crystalline fine occurs as well formed… … Wikipedia