Rock Identifier
Moqui Marble (Iron oxide concretions (Hematite/Goethite shell with sandstone core)) — sedimentary
sedimentary

Moqui Marble

Iron oxide concretions (Hematite/Goethite shell with sandstone core)

AI-generated identification · may be incorrect

Hardness of 5.5 to 6.5 on the Mohs scale, brown to black exterior color, metallic to dull luster, amorphous or cryptocrystalline structure, no cleavage, specific gravity around 3.5 to 4.5.

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Physical properties

Hardness of 5.5 to 6.5 on the Mohs scale, brown to black exterior color, metallic to dull luster, amorphous or cryptocrystalline structure, no cleavage, specific gravity around 3.5 to 4.5.

Formation & geological history

Formed through the precipitation of iron-rich groundwater around sandstone cores in porous sand deposits, typically dating back millions of years.

Uses & applications

Used primarily in holistic healing, meditation, energy work, and as unique collector specimens.

Geological facts

Also known as Shaman stones, they are naturally occurring iron oxide concretions found exclusively in the Navajo Sandstone formations of the southwestern United States.

Field identification & locations

Easily identified by their spherical or disk-like shapes with prominent dark iron bands and smooth, sandstone-textured surfaces.