richterite

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 containing as bases sodium, magnesium, manganese, potassium, and calcium

Useful english dictionary. 2012.

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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 — noun A basic silicate mineral of sodium, potassium, magnesium, manganese, and calcium belonging to the amphibole group …   Wiktionary

  • richterite — rich·ter·ite …   English syllables

  • 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

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