Mineralape
Coombsite
Erik Vercammen·CC BY 3.0·Wikimedia

Coombsite

K(Mn,Fe,Mg)13(Si,Al)18O42(OH)14
root IMA approved

Composizione

Composizione (% in peso)
O
Mn
Si
  • OOxygen41.3%
  • MnManganese32.9%
  • SiSilicon23.3%
  • KPotassium1.8%
  • HHydrogen0.7%

Etimologia

Nome derivato da Douglas Coombs.