alstonite

alstonite

also called  Bromlite, 

      a barium and calcium carbonate mineral, CaBa(CO3)2, with minor amounts of strontium. It is colourless or light gray or pink in appearance and is also transparent or translucent. Its crystal structure is orthorhombic and is identical to that of aragonite, with barium and calcium in nine-fold coordination but ordered within layers; the layers can in turn be arranged in various stacking sequences, resulting in a complex structure. Alstonite is found in association with calcite, barite, and witherite as low-temperature hydrothermal deposits. For detailed physical properties, see carbonate mineral (table).

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  • Alstonite — Alstonite, also known as bromlite, is a member of the aragonite group of carbonate minerals. It consists of an isomorphous mixture of calcium and barium carbonates in various proportions, CaBa(CO3)2, it is triclinic in crystal structure and… …   Wikipedia

  • alstonite — Bromlife Brom life, n. [From Bromley Hill, near Alston, Cumberland, England.] (Min.) A carbonate of baryta and lime, intermediate between witherite and strontianite; called also {alstonite}. [1913 Webster] …   The Collaborative International Dictionary of English

  • alstonite — alstonitas statusas T sritis chemija apibrėžtis Mineralas. formulė BaCa[CO₃]₂ atitikmenys: angl. alstonite rus. альстонит ryšiai: sinonimas – bromlitas …   Chemijos terminų aiškinamasis žodynas

  • alstonite — ˈȯlztəˌnīt, lst noun ( s) Etymology: Alston, Cumberland, England + English ite : bromlite * * * alstonite Min. (ˈɔːlstənaɪt) [f. Alston in Cumbria, where found.] A double carbonate of lime …   Useful english dictionary

  • alstonite — noun An aragonite mineral consisting of an isomorphous mixture of calcium and barium carbonates. Syn: bromlite …   Wiktionary

  • alstonite — al·ston·ite …   English syllables

  • List of minerals A-B (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

  • Bromlife — Brom life, n. [From Bromley Hill, near Alston, Cumberland, England.] (Min.) A carbonate of baryta and lime, intermediate between witherite and strontianite; called also {alstonite}. [1913 Webster] …   The Collaborative International Dictionary of English

  • 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

  • Liste des mineraux (lettre A) — Liste des minéraux (lettre A) 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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