metamorphic
Zebra Marble
Recrystallized Calcite (CaCO3) with Carbonaceous Impurities
Hardness: 3 (Mohs scale); Color: Creamy white with dark grey to black bands; Luster: Vitreous to waxy after polishing; Crystal structure: Trigonal (granular texture); Cleavage: Perfect rhombohedral in individual crystals; Specific Gravity: 2.71
- Hardness
- 3 (Mohs scale)
- Color
- Creamy white with dark grey to black bands
- Luster
- Vitreous to waxy after polishing
Identified More metamorphic →
Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 3 (Mohs scale); Color: Creamy white with dark grey to black bands; Luster: Vitreous to waxy after polishing; Crystal structure: Trigonal (granular texture); Cleavage: Perfect rhombohedral in individual crystals; Specific Gravity: 2.71
Formation & geological history
Formed through the regional or contact metamorphism of limestone or dolostone. The characteristic striped banding occurs due to the concentration of impurities like graphite, carbon, or clay minerals along pressure zones during the recrystallization process.
Uses & applications
Commonly used for ornamental carvings, tumble stones, decorative tiles, bookends, and in jewelry as cabochons or beads.
Geological facts
Zebra marble is often confused with Zebra Jasper, but it is much softer and will react with weak acids. It is a favorite among metaphysical collectors who associate it with balance and stabilization.
Field identification & locations
Identify in the field by its distinct banding and its reaction (effervescence) to cold dilute hydrochloric acid. It is commonly found in areas with ancient limestone beds that have undergone tectonic activity, such as Utah (USA), Australia, and various parts of India.
More like this
