Pargasite is a mineral that belongs to the amphibole group. It is named after the town of Pargas in southwestern Finland where it was first discovered. Pargasite is a rare mineral and is typically found in metamorphic rocks. It has a greenish-black color and a prismatic crystal habit. Synonyms for pargasite include hornblende-ferropargasite, Winchite, ferrohornsblende, and Pargasit. These synonyms are often used interchangeably by mineralogists and gemologists. Pargasite has many unique physical properties, such as its high density and hardness, which make it an interesting and unusual addition to any mineral collection.