Iyoite

A variety of Atacamite Group

What is Iyoite?

Iyoite is a very rare manganese copper chloride hydroxide mineral with the formula MnCuCl(OH)3. Iyoite is a new member of the atacamite group, and it an analogue of botallackite characterized in manganese and copper ordering. Iyoite is monoclinic (space group P21/m). It is chemically similar to misakiite. Both minerals come from the Ohku mine in the Ehime prefecture, Japan.

Iyoite Market Value Calculator

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

Preview only. Full pricing comps and valuation report in the app.

Iyoite Localities Map

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

Map preview
North ZoneCentral RidgeSouth Basin

Interactive map layers and collecting notes are available in the app.

Quick Facts

Physical Properties

Color
Pale green
Density
3.22 g/cm³

Chemical Properties

Chemical Formula
MnCuCl(OH)3
Elements
Cl, Cu, H, Mn, O
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Related Atacamite Group

Atacamite

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