mineral
Moqui Marble
Hematite-Goethite Concretion (Fe2O3 / FeO(OH))
AI-generated identification · may be incorrectHardness of 5.5 to 6.5 on the Mohs scale, dark brown to black color, metallic to sub-metallic luster, amorphous crystal structure, and a high specific gravity.
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Physical properties
Hardness of 5.5 to 6.5 on the Mohs scale, dark brown to black color, metallic to sub-metallic luster, amorphous crystal structure, and a high specific gravity.
Formation & geological history
Formed through the precipitation of iron and sandstone minerals by groundwater in sedimentary rock layers, often dating back millions of years.
Uses & applications
Used primarily by mineral collectors, for metaphysical and grounding practices, and as unique decorative display items.
Geological facts
Also known as Shaman stones, these concretions are found almost exclusively in the Navajo Sandstone formation of the southwestern United States.
Field identification & locations
Identified by their spherical shape and hard iron-oxide shell encasing a soft sandstone center, found eroding out of desert sandstone cliffs.
