How do I identify Tangeite?

Tangeite can be identified by its hardness of 3.5 on the Mohs scale, yellow color. Look for these key characteristics when examining specimens.

What color is Tangeite?

Tangeite typically appears in yellow, yellow-green, olive green, green to dark green; light green in transmitted light.. Color can vary depending on impurities and formation conditions.

How hard is Tangeite?

Tangeite has a hardness of 3.5 on the Mohs scale. This gives it moderate hardness.

Tangeite

A variety of Minerals

What is Tangeite?

Tangeite, also known as calciovolborthite, is a calcium, copper vanadate mineral with formula: CaCu(VO4)(OH). It occurs as a secondary mineral that can be found in sandstone and also in the oxidized zones of vanadium bearing deposits. It was named in 1925 by Aleksandr Evgenievich Fersman for its discovery locality in the Tange Gorge, Ferghana Valley, Alai Mountains, Kyrgyzstan.

Tangeite Market Value Calculator

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

Tangeite Localities Map

See where Tangeite 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: yellow, yellow-green, olive green, green to dark green; light green in transmitted light.
Hardness (Mohs): 3.5
Density: 3.84 g/cm³
Streak: light yellow green