mineral
Boji Stone
Polished iron pyrite and marcasite concretions
AI-generated identification · may be incorrectHardness of 6 to 6.5 on the Mohs scale, earthy brown to grey color, metallic luster when scraped, amorphous concretion structure with no distinct cleavage.
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Physical properties
Hardness of 6 to 6.5 on the Mohs scale, earthy brown to grey color, metallic luster when scraped, amorphous concretion structure with no distinct cleavage.
Formation & geological history
Formed as mineral concretions in sedimentary sandstone formations over millions of years.
Uses & applications
Popular in crystal healing, metaphysical practices, and mineral collecting.
Geological facts
Boji stones are often found in pairs with contrasting smooth and rough textures, marketed as male and female stones.
Field identification & locations
Found exclusively in the Kansas prairies near the Smoky Hill River; identified by their rounded concretion shape and iron content.
