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单词 alstonite
释义

alstonite

/ˈɔːlst(ə)nʌɪt/ /ˈɒlst(ə)nʌɪt/
Mineralogy
noun
A mineral consisting of a double carbonate of calcium and barium, typically occurring as strongly striated colourless or white pseudohexagonal pyramids.
  • Chemical formula: BaCa(CO3)2. Crystal system: triclinic..

Origin

Mid 19th century; earliest use found in Edinburgh New Philosophical Journal. From the name of AlstonMoor, an area of moorland in Cumbria, England, where the mineral was discovered + -ite, after German Alstonit.

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更新时间:2024/12/23 16:46:49