Ichnusaite

A variety of Minerals

What is Ichnusaite?

Ichnusaite is a very rarely found mineral. Ichnusaite is a natural compound of thorium and molybdenum with the formula Th(MoO4)2·3H2O. It was discovered in Su Seinargiu, Sarroch, Cagliari, Sardegna, Italy in 2013. This locality is also a place of discovery of the second natural thorium molybdate - nuragheite.

Ichnusaite Market Value Calculator

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Ichnusaite Localities Map

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

Map preview
North ZoneCentral RidgeSouth Basin

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Key Characteristics

Formation of Ichnusaite

Muscovite, nuragheite, and xenotime-(Y) are the associates of ichnusaite.

Composition of Ichnusaite

The main features of the crystal structure of ichnusaite are: electroneutral Th(MoO4)2(H2O)2 (100) sheets ThO7(H2O)2 and MoO4 polyhedra polymerize to give the above sheets sheets are stacked along [100] and held by hydrogen bonds

Quick Facts

Physical Properties

Color
Colorless
Density
4.262 g/cm³
Streak
white

Chemical Properties

Chemical Formula
Th(MoO4)2·3H2O
Elements
H, Mo, O, Th
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