description Pargasite Overview
Pargasite is a valid amphibole mineral named after Pargas, Finland, where it was first described in 1814. It is an aluminium-bearing, sodium-calcium amphibole found in igneous and metamorphic rocks, including amphibolites, marbles, and calc-silicate rocks. Well-formed crystals can be green, brown, or dark in tone, making the mineral useful to collectors, while its composition helps petrologists interpret the conditions under which rocks formed. [Mindat](https://www.mindat.org/min-3119.html)
help Pargasite FAQ
What is pargasite?
Pargasite is an aluminium-bearing sodium-calcium amphibole mineral. It occurs in igneous and metamorphic rocks such as amphibolites, marbles, and calc-silicate rocks.
Where does the name pargasite come from?
The mineral is named after Pargas, Finland, where it was first described in 1814. The name connects the mineral with its original European locality.
What rocks contain pargasite?
Pargasite can occur in amphibolites, marbles, and calc-silicate rocks. These settings reflect its formation in chemically complex igneous or metamorphic environments.
Does pargasite form visible crystals?
Yes. Well-formed crystals can occur, although the mineral is also found as part of fine-grained rock assemblages. Crystal quality and color depend on the geological setting.
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