L'yttrialite est un silicate naturel d'yttrium, de thorium, contenant également d'autres éléments, se présentant en petites tablettes prismatiques, vert olive à brun noir.
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Yttrialite — or Yttrialite (Y) is a rare yttrium thorium sorosilicate mineral with formula: (Y,Th)2Si2O7. It forms green to orange yellow masses with conchoidal fracture. It crystallizes in the monoclinic prismatic crystal system. It has a Mohs hardness of 5… … Wikipedia
yttrialite — [ itrijalit ] n. f. • 1907; de yttrium ♦ Minér. Silicate naturel d yttrium, de thorium, etc. ● yttrialite nom féminin Silicate naturel d yttrium, de thorium, etc. yttrialite [itʀijalit] n. f. ÉTYM. 1907; de yttria. ❖ … Encyclopédie Universelle
yttrialite — noun A rare, highly radioactive yttrium thorium sorosilicate mineral with conchoidal fracture … Wiktionary
yttrialite — yt·tri·a·lite … English syllables
yttrialite — əˌlīt noun ( s) Etymology: yttria + lite : an olive green massive mineral (Y,Gd,Th)2Si2O7 consisting of a silicate chiefly of thorium, yttrium, and gadolinium … Useful english dictionary
List of minerals U-Z (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
William Niven — Infobox Scientist name = William Niven image width = 200 px caption = William Niven, mineralogist, circa 1895 birth date = 6 October, 1850 birth place = Bellshill, Lanarkshire, Scotland death date = June 2, 1937 death place = Austin, Texas,… … Wikipedia
YTTRIUM — De Ytterby, village de Suède. Symbole chimique: Y Numéro atomique: 39 Masse atomique: 88,905 g Point de fusion: 1 523 0C Point d’ébullition: 3 337 0C Densité (à 25 0C): 4,457 Élément chimique du groupe des terres rares, de couleur argentée,… … Encyclopédie Universelle
Rare earth element — Rare earth ore, shown with a United States penny for size comparison These rare … Wikipedia
List of minerals — This is a List of minerals for which there are Wikipedia articles. Mineral variety names and mineraloids are to be listed after the valid minerals for each letter.For a complete listing (about 4,000) of all mineral names: List of minerals… … Wikipedia
