metamorphic
Tumbled pink zebra jasper
Likely pink-and-black banded marble or jasper; exact identification is uncertain from the image
AI-generated identification · may be incorrectPolished, opaque, pale pink stone with irregular black bands. If marble, it is mainly calcite (Mohs 3); if jasper, chiefly microcrystalline quartz (Mohs 6.5–7); luster is waxy to polished, and crystal structure is not visible.
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Physical properties
Polished, opaque, pale pink stone with irregular black bands. If marble, it is mainly calcite (Mohs 3); if jasper, chiefly microcrystalline quartz (Mohs 6.5–7); luster is waxy to polished, and crystal structure is not visible.
Formation & geological history
The pattern may reflect mineral-rich bands or veins in a naturally formed stone, later tumbled smooth. Geological age and exact formation cannot be determined from the photograph.
Uses & applications
Typically sold as a pocket stone, jewelry bead, or decorative specimen; marble varieties may also be used as ornamental stone.
Geological facts
“Zebra jasper” is a trade name applied to several differently composed banded stones, so appearance alone does not establish the mineral identity.
Field identification & locations
A hardness test or reaction to dilute acid can help distinguish quartz-rich jasper from calcite marble; the rounded shape and gloss indicate tumbling. Banded pink stones are sold from multiple localities worldwide.
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