How do I identify Fermiite?

Fermiite can be identified by its hardness of 2.5 on the Mohs scale, Pale greenish-yellow color. Look for these key characteristics when examining specimens.

What color is Fermiite?

Fermiite typically appears in Pale greenish-yellow. Color can vary depending on impurities and formation conditions.

How hard is Fermiite?

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

Fermiite

A variety of Minerals

What is Fermiite?

Fermiite is a rare uranium mineral with the formula Na4(UO2)(SO4)3·3H2O. Chemically related minerals include oppenheimerite, meisserite (which is also structurally-related to fermiite), belakovskiite, natrozippeite and plášilite. Fermiite comes from the Blue Lizard mine, San Juan County, Utah, USA, which is known for many rare uranium minerals. The name honors Enrico Fermi (1901–1954).

Fermiite Market Value Calculator

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

Fermiite Localities Map

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

Map preview

North ZoneCentral RidgeSouth Basin

Key Characteristics

Composition of Fermiite

The main building block of the crystal structure of fermiite is a chain of the composition (UO2)(SO4)3. Chains are connected with five types of Na-O polyhedra.