sedimentary
Zebra Jasper
Tectonized Microcrystalline Quartz (SiO2)
Hardness: 6.5-7 (Mohs scale), Color: Black and white/cream bands, Luster: Vitreous to dull, Crystal Structure: Trigonal (microcrystalline), Cleavage: None, SG: 2.6-2.9
- Hardness
- 6
Identified More sedimentary →
Explore Zebra Jasper in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6.5-7 (Mohs scale), Color: Black and white/cream bands, Luster: Vitreous to dull, Crystal Structure: Trigonal (microcrystalline), Cleavage: None, SG: 2.6-2.9
Formation & geological history
Formed from silica-rich sedimentary deposits or volcanic ash where tectonic activity or mineral infiltration created distinct dark and light patterns over millions of years.
Uses & applications
Primarily used in jewelry (cabochons, beads), decorative carvings, and as a popular stone for collectors and spiritual practitioners.
Geological facts
Despite being called 'jasper', many specimens labeled Zebra Jasper are actually types of marble or tuffs with distinct mineral banding; the variety in the image shows a high-contrast brecciated or tectonic pattern.
Field identification & locations
Identified by its high contrast striped or mottled appearance and hardness (cannot be scratched by a knife). Commonly found in Australia, Africa, and Brazil.
More like this
Other sedimentary specimens
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Cone-in-cone structure (Limestone)
Cone-in-cone structure (Secondary Sedimentary Structure)
sedimentary
Chert Breccia
Brecciated Chert (Microcrystalline Silica)
sedimentary
Sandstone Grain
Clastic Sedimentary Rock Grain (SiO2 dominated)
sedimentary
Shale or Slaty Mudstone
Argillaceous sedimentary rock
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary