I.V. Pekov and A.V. Kasatkin·CC BY 4.0·Wikimedia

Polyarsite

Na₇CaMgCu₂(AsO₄)₄F₂Cl

Monoclino third eye IMA approved

Composizione

Composizione (% in peso)

As

O

Na

Cu

AsArsenic30.5%
OOxygen26.1%
NaSodium16.4%
CuCopper12.9%
CaCalcium4.1%
FFluorine3.9%
ClChlorine3.6%
MgMagnesium2.5%

Etimologia

Nome derivato da arsenate ion.

Chakra secondari