![Serpentine (New Jade) (Antigorite/Lizardite [Mg3Si2O5(OH)4]) — metamorphic](https://media.rock.id/serpentine-new-jade-d44a9320-5033-4e31-ab5d-b208dfd600e2-compressed.jpg)
metamorphic
Serpentine (New Jade)
Antigorite/Lizardite [Mg3Si2O5(OH)4]
Hardness: 3-6 (Mohs), Color: Olive green to yellow-green, Luster: Waxy to greasy, Crystal structure: Monoclinic, Specific gravity: 2.5-2.6
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Physical properties
Hardness: 3-6 (Mohs), Color: Olive green to yellow-green, Luster: Waxy to greasy, Crystal structure: Monoclinic, Specific gravity: 2.5-2.6
Formation & geological history
Formed through serpentinization, the metamorphic hydration of ultramafic rock from the Earth's mantle at low temperatures in the presence of water.
Uses & applications
Used for carvings, decorative architecture, gemstones (often as a Jade substitute), and as a minor source of magnesium.
Geological facts
Serpentine is often called 'New Jade' or 'Bowenite' because of its visual similarity to Nephrite Jade, though it is much softer and chemically distinct. It is the official state rock of California.
Field identification & locations
Identified by its greasy feel, green color, and relative softness compared to real jade. Often found in tectonic suture zones and mountain ranges like the Appalachians and the Alps.
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