It was first described for an occurrence in Pargas, Finland in 1814 and named for the locality.

[6] It occurs in high temperature regional metamorphic rocks and in the skarns within contact aureoles around igneous intrusions.

[3] Pargasite is the main water-storage site in the uppermost mantle; however, it becomes unstable at depths greater than 90 km (56 mi).

This has significant consequences for the water storage capacity, and the solidus temperature of the lherzolite of the upper mantle.

This article about a specific silicate mineral is a stub.