How do I identify Folvikite?

Folvikite can be identified by its hardness of 6 on the Mohs scale, Black to dark reddish-brown color. Look for these key characteristics when examining specimens.

What color is Folvikite?

Folvikite typically appears in Black to dark reddish-brown. Color can vary depending on impurities and formation conditions.

How hard is Folvikite?

Folvikite has a hardness of 6 on the Mohs scale. This gives it moderate hardness.

Folvikite

A variety of Pinakiolite Group

What is Folvikite?

Folvikite Market Value Calculator

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

Folvikite Localities Map

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

Map preview

North ZoneCentral RidgeSouth Basin

Quick Facts

Physical Properties

Color: Black to dark reddish-brown
Hardness (Mohs): 6
Density: 4.14 g/cm³
Streak: Reddish-brown

Chemical Properties

Chemical Formula: Sb5+Mn3+(Mg,Mn2+)10O8(BO3)4
Elements: B, Mg, Mn, O, Sb

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