metamorphic

Soapstone

Steatite

AI-generated identification · may be incorrect

Hardness: 1-1.5 on the Mohs scale, extremely soft. Color: can be white, gray, green, pink, or brownish. Luster: Pearly to greasy. Crystal structure: Massive, fine-grained. Specific gravity: 2.7-2.8.

Hardness: 1-1
Color: can be white, gray, green, pink, or brownish
Luster: Pearly to greasy

Identified September 19, 2026More metamorphic →

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Physical properties

Hardness: 1-1.5 on the Mohs scale, extremely soft. Color: can be white, gray, green, pink, or brownish. Luster: Pearly to greasy. Crystal structure: Massive, fine-grained. Specific gravity: 2.7-2.8.

Formation & geological history

Formed through the metamorphism of ultramafic protoliths (like dunite or serpentinite) and the metasomatism of siliceous dolostones.

Uses & applications

Carving, sculpture, countertops, sinks, historical cookware, and as an electrical insulator.

Geological facts

Soapstone has been used for thousands of years by Native Americans for making bowls, pipes, and ornaments due to its softness and heat-retaining properties.

Field identification & locations

Easily identified by its soapy feel and extreme softness (can be scratched with a fingernail). Commonly found in areas with ancient tectonic activity.