How do I identify Tokyoite?

Tokyoite can be identified by its hardness of 4.5 - 5 on the Mohs scale, Red black color. Look for these key characteristics when examining specimens.

What color is Tokyoite?

Tokyoite typically appears in Red black. Color can vary depending on impurities and formation conditions.

How hard is Tokyoite?

Tokyoite has a hardness of 4.5 - 5 on the Mohs scale. This gives it moderate hardness.

How to Identify Tokyoite | Properties, Meaning & Uses

What is Tokyoite?

Tokyoite is a rare barium manganese vanadate mineral with the chemical formula: Ba2(Mn,Fe)OH(VO4)2. It is the manganese analogue of the iron rich gamagarite and the barium analogue of the lead vanadate, brackebuschite. It occurs in low-grade metamorphosed sedimentary manganese ore deposits associated with hyalophane, braunite and tamaite. It was first reported for an occurrence in the Shiromaru Mine, Okutama, Tama district, Tokyo Prefecture, Kantō region, Honshu Island, Japan and approved by the IMA in 2003. It has been found in two mines in Italy and one in Japan, for which it was named.

Tokyoite Market Value Calculator

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

Tokyoite Localities Map

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