How do I identify Proustite?

Proustite can be identified by its hardness of 2 - 2.5 on the Mohs scale, Scarlet color, Adamantine luster, Trigonal crystal system. Look for these key characteristics when examining specimens.

What color is Proustite?

Proustite typically appears in Scarlet, Vermilion, reddish gray. Color can vary depending on impurities and formation conditions.

How hard is Proustite?

Proustite has a hardness of 2 - 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.

Proustite

A variety of Proustite Group

Rare

Proustite specimen - rock identification

What is Proustite?

Proustite appears near the top of many gem collectors' "must-have" lists. It is very difficult to come across a specimen that is gallery grade. Less attractive pieces are mined and smelted for their high levels of silver. It is one of the very few transparent crystals to contain this element!

Etymology & Origins

It is closely allied to the corresponding sulfantimonide, pyrargyrite, from which it was distinguished by the chemical analyses of Joseph L. Proust (1754–1826) in 1804, after whom the mineral received its name.

Uses & Applications

Proustite is a minor ore of silver, which is an important metal used in utensils, mirrors, jewelry, and photography. This mineral is often sought out by collectors for its brilliant color and rarity but is too soft to use for jewelry.

Healing Properties

Proustite activates the Root chakra and connects it to the Earthstar chakra to help the user stay grounded. It is said to help a person identify their inner fears and provides the energy for change. It removes negative energy from the aura and protects against toxic psychic forces. It is believed to purify the physical and spiritual body to allow for inner healing.

Optical Properties

Refractive Index: 2.792-3.087
Birefringence: 0.295
Pleochroism: Strong
Optical Character: Uniaxial negative

Proustite Market Value Calculator

Estimate the market value of Proustite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

Proustite Localities Map

See where Proustite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview

North ZoneCentral RidgeSouth Basin

Associated Chakras

Root

Key Characteristics

Characteristics of Proustite

The prismatic crystals are often terminated by the scalenohedron and the obtuse rhombohedron, thus resembling calcite (dog-tooth-spar) in habit. The color is scarlet-vermilion and the luster adamantine; crystals are transparent and very brilliant, but on exposure to light they soon become dull black and opaque. The streak is scarlet, the hardness 2.5, and the specific gravity 5.57.