Rock Identifier
Moqui Marble (Hematite-cemented sandstone (Iron oxide concretions)) — mineral
mineral

Moqui Marble

Hematite-cemented sandstone (Iron oxide concretions)

AI-generated identification · may be incorrect

Hardness of 5.5 to 6.5 on the Mohs scale, earthy brown to reddish-black color, submetallic to dull luster, amorphous or microcrystalline structure with no cleavage, and a high specific gravity due to iron content.

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Physical properties

Hardness of 5.5 to 6.5 on the Mohs scale, earthy brown to reddish-black color, submetallic to dull luster, amorphous or microcrystalline structure with no cleavage, and a high specific gravity due to iron content.

Formation & geological history

Formed through the precipitation of iron-rich groundwaters in sandstone formations, primarily found in the Navajo Sandstone of Utah dating back to the Jurassic period.

Uses & applications

Used primarily in metaphysical practices, meditation, balancing energy, and as popular geological specimens for collectors.

Geological facts

Also known as shaman stones or thunder boomers, these spherical concretions are often found in pairs of male and female stones.

Field identification & locations

Identified by their distinctive spherical shape, rough sandstone exterior, and heavy iron core; commonly found weathering out of sandstone cliffs in the American Southwest.