clarkeite

clarkeite
A uranium oxide mineral of variable composition and uncertain structure, its colour varying from dark brown to orange.

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  • Clarkeite — is a uranium oxide mineral of composition (Na,Ca,Pb)2(UO2)2(O,OH)3 or (Na,Ca,Pb)(UO2)O(OH)·0 1H2O. The color of samples varies from dark brown to reddish orange. Clarkeite forms by oxidation and replacement of uraninite late during pegmatite… …   Wikipedia

  • clarkeite — clarke·ite …   English syllables

  • clarkeite — ˈklärˌkīt noun ( s) Etymology: Frank W. Clarke died 1931 American chemist + English ite : a rare dark brown radioactive mineral whose chief constituent is uranium oxide (sp. gr. 6.39) …   Useful english dictionary

  • List of minerals C-E (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 — 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

  • Sodium uranate — Chembox new Name = Sodium uranate ImageFile = Sodium uranate.jpg ImageName = Sodium uranate OtherNames = Section1 = Chembox Identifiers CASNo = Section2 = Chembox Properties Formula = Na2O (UO3)2 MolarMass = Density = Solvent = other solvents… …   Wikipedia

  • Frank Wigglesworth Clarke — (1847 1931), was a chemist, born in Boston, Massachusetts 19 March, 1847. Sometimes known as the Father of Geochemistry, he is credited with having determined composition of the Earth s crust.Clarke taught chemistry and physics at Howard… …   Wikipedia

  • Liste des mineraux (lettre C) — Liste des minéraux (lettre C) liste des minéraux A B C D E F G H I J K L M N O P Q R S T U V W …   Wikipédia en Français

  • Liste des minéraux (lettre C) — v · Liste des minéraux A • B • C • D • E • F  …   Wikipédia en Français

  • Liste des minéraux (lettre c) — liste des minéraux A B C D E F G H I J K L M N O P Q R S T U V W …   Wikipédia en Français

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