出典:Wiktionary
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avogadrite
出典:Wikipedia
出典:『Wikipedia』 (2011/04/18 22:59 UTC 版)
Avogadrite ((K,Cs)BF4) is a potassium-caesium tetrafluoroborate. Avogadrite crystallizes in the orthorhombic system (space group Pnma) with cell parameters a 8.66 Å, b 5.48 Å and c Å 7.03. The mineral is only found as a sublimation product around volcanic fumaroles.