John Sobolewski·CC BY 3.0·Wikimedia

Howieite

Na(Fe,Mn)₁₀(Fe,Al)₂Si₁₂O₃₁(OH)₁₃

root IMA approved

構成

Composizione (% in peso)

O

Fe

Si

OOxygen40.3%
FeIron38.4%
SiSilicon19.3%
NaSodium1.3%
HHydrogen0.7%

語源

名前の由来 Robert Andrew Howie.

副チャクラ