Mineralape
Howieite
John Sobolewski·CC BY 3.0·Wikimedia

Howieite

Na(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
root IMA approved

Komposisi

Composizione (% in peso)
O
Fe
Si
  • OOxygen40.3%
  • FeIron38.4%
  • SiSilicon19.3%
  • NaSodium1.3%
  • HHydrogen0.7%

Etimologi

Dinamai dari Robert Andrew Howie.

Chakra sekunder

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