Tags: Chemical Substance, Mineral.
Pargasite is a complex inosilicate mineral of the amphibole group with formula NaCa2(MgFe2+)4Al(Si6Al2)O22(OH)2.It was first described for an occurrence in Pargas Finland in 1814 and named for the locality.It occurs in high temperature regional metamorphic rocks and in the skarns within contact aureoles around igneous intrusions.
