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Epididymite

Na₂Be₂Si₆O₁₅·H₂O

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構成

Composizione (% in peso)

O

Si

Na

OOxygen52.2%
SiSilicon34.4%
NaSodium9.4%
BeBeryllium3.7%
HHydrogen0.4%

語源

名前の由来 twin.