Pargasite

Q: What is Pargasite?

Pargasite is a calcium sodium magnesium iron aluminum silicate hydroxide amphibole, typically forming dark green to brownish-green, rarely blue or colorless, prismatic monoclinic crystals with a vitreous luster in high-temperature metamorphic and igneous environments. Named after the Pargas district

Q: What is the hardness of Pargasite?

Pargasite has a Mohs hardness of 5.0 to 6.0, making it moderate for use in jewelry.

Q: What color is Pargasite?

Pargasite is primarily Various.

Q: How much does Pargasite cost?

Pargasite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.

Q: What is the crystal system of Pargasite?

Pargasite belongs to the Monoclinic crystal system.

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Physical & Optical Properties

Category Semi-Precious Gems

Mohs Hardness 5.0 – 6.0

Specific Gravity 3.04 – 3.26

Refractive Index 1.613 – 1.663

Crystal System Monoclinic

Cleavage Perfect

Color various

Birefringence 0.02

Pleochroism Orange/brown stones - distinct: colorless to yellow - light brown - brown; Green stones - distinct: greenish-yellow - emerald-green - greenish-blue

Mohs Hardness

Mohs Hardness: 5.0 – 6.0

1 Soft10 Hard

Crystal System

Value & Market

Price Tier Budget (< $50/ct)

Where to Buy Pargasite

Blue Nile Fine jewelry retailer

James Allen Gemstone jewelry

Brilliant Earth Ethically sourced gems

Amazon Wide selection

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About Pargasite

Pargasite is a calcium sodium magnesium iron aluminum silicate hydroxide amphibole, typically forming dark green to brownish-green, rarely blue or colorless, prismatic monoclinic crystals with a vitreous luster in high-temperature metamorphic and igneous environments. Named after the Pargas district in Finland, it also occurs in crystalline limestones, basic igneous rocks, and peridotites worldwide. Rare transparent greenish or pale blue faceted pargasite is a collector gem within the amphibole mineral group.