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Ca₂Mn₂Nb₆O₁₉·20H₂O

Triclino heart IMA approved

Komposisi

Composizione (% in peso)

O

Nb

Mn

OOxygen44.2%
NbNiobium39.5%
MnManganese7.8%
CaCalcium5.7%
HHydrogen2.9%

Etimologi

Dinamai dari Morten Thrane Esmark.

Chakra sekunder