mineral
Wild Horse Magnesite
Magnesite with Hematite and Quartz (MgCO3)
AI-generated identification · may be incorrectHardness of 3.5 to 4.5 on the Mohs scale. Displays a distinctive white and dark brown to black mottled or webbed pattern with a vitreous to dull luster.
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Physical properties
Hardness of 3.5 to 4.5 on the Mohs scale. Displays a distinctive white and dark brown to black mottled or webbed pattern with a vitreous to dull luster.
Formation & geological history
Formed through the alteration of magnesium-rich rocks like serpentinite or peridotite via hydrothermal processes.
Uses & applications
Popularly used as a decorative gemstone in Southwestern-style jewelry, cabochons, and ornamental carvings.
Geological facts
Often marketed under trade names like Wild Horse Stone or Wild Horse Jasper, though it is neither a true jasper nor associated with actual horses.
Field identification & locations
Identified by its striking white patches enclosed in a dark matrix. Commonly sourced from the Gila County region in Arizona.
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