richterite
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richterite — ▪ mineral also called soda tremolite amphibole mineral, a sodium silicate of calcium and magnesium or manganese. It occurs in thermally metamorphosed limestones and skarns or as a hydrothermal product in alkaline igneous rocks. Richterite … Universalium
richterite — rich·ter·ite … English syllables
richterite — ˈriktəˌrīt noun ( s) Etymology: German richterit, from Theodor Richter died 1898 German metallurgical chemist + German it ite : a mineral (Na,K)2(Mg,Mn,Ca)6Si8O22(OH)2 that is a variety of amphibole containi … Useful english dictionary
Lamproite — Lamproites are ultrapotassic mantle derived volcanic rocks. They have low CaO, Al2O3, Na2O, high K2O/Al2O3, a relatively high MgO content and extreme enrichment in incompatible elements.Lamproites are geographically widespread yet are… … Wikipedia
Richterit — Grüner Richterit aus Badachschan, Afghanistan (Größe: 2,1 x 1,0 cm) Chemische Formel Na[CaNa](Mg,Fe2+)5[(OH)2|Si8O22][1] … Deutsch Wikipedia
List of minerals F-J (complete) — It is currently not possible to have a complete list of minerals . The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go… … Wikipedia
List of minerals N-R (complete) — It is currently not possible to have a complete list of minerals . The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go… … Wikipedia
amphibole — /am feuh bohl /, n. Mineral. any of a complex group of hydrous silicate minerals, containing chiefly calcium, magnesium, sodium, iron, and aluminum, and including hornblende, tremolite, asbestos, etc., occurring as important constituents of many… … Universalium
Amphiboles — ▪ Table Amphiboles name colour lustre Mohs hardness specific gravity actinolite colourless to gray; darkens with increased Fe through green to black silky; oily 2.9–3.2 2.9–3.2 anthophyllite white, gray, green, or various shades of brown vitreous … Universalium
Grand Guignol Orchestra — 人形 (ギニョール) 宫廷 楽 団 (Guignol Kyūtei Gakudan) Género fantasía, horror, misterio Creado por Kaori Yuki Editorial Hak … Wikipedia Español