metamorphic
Marble Sphere
Calcitic Marble (CaCO3)
AI-generated identification · may be incorrectHardness of 3 on the Mohs scale, white or greyish color with subtle veining, vitreous to greasy luster, and a fine-grained crystalline structure.
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Physical properties
Hardness of 3 on the Mohs scale, white or greyish color with subtle veining, vitreous to greasy luster, and a fine-grained crystalline structure.
Formation & geological history
Formed through the metamorphism of sedimentary carbonate rocks, primarily limestone or dolostone, under intense heat and pressure.
Uses & applications
Commonly shaped into decorative spheres, sculptures, and architectural tiles due to its smooth polish and aesthetic appeal.
Geological facts
Marble has been prized by sculptors since ancient times for its workability and translucent quality when polished.
Field identification & locations
Identified by its softness, reactivity to dilute hydrochloric acid, and characteristic crystalline matrix.
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