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Tvedalite

(Ca,Mn)₄Be₃Si₆O₁₇(OH)₄·3H₂O

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構成

Composizione (% in peso)

O

Si

Ca

OOxygen51.2%
SiSilicon22.5%
CaCalcium21.4%
BeBeryllium3.6%
HHydrogen1.3%

語源

名前の由来 Tvedalen.

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