sedimentary

Zebra Jasper

Opaque microcrystalline Quartz (SiO2) with impurities

AI-generated identification · may be incorrect

Hardness: 6.5–7 on Mohs scale; Color: Dark grey or black with white to light grey swirling patterns; Luster: Dull/waxy (unpolished) to vitreous (polished); Crystal Structure: Hexagonal/Trigonal microcrystalline; Cleavage: None; Specific Gravity: 2.6-2.7.

Hardness: 6
Luster: Dull/waxy (unpolished) to vitreous (polished)

Identified June 3, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed primarily in sedimentary environments when silica-rich fluids permeate porous rocks or volcanic ash, depositing microcrystalline quartz. The distinct patterns are caused by the presence of organic material or iron oxides during formation.

Uses & applications

Used extensively in lapidary work para bead making, cabochons for jewelry (necklaces and bracelets), decorative figurines, and as a popular meditation or 'healing' stone in spiritual practices.

Geological facts

Despite being called 'jasper', many specimens of Zebra Jasper are actually high-quality siltstone or marble-based rocks. It is often called the 'Anti-Apathy' stone in certain metaphysical circles.

Field identification & locations

Identify by its characteristic contrasting banding and high hardness (it will scratch glass). It is commonly found in India, Russia, and Africa. For field identification, look for a smooth, waxy texture on broken surfaces and the lack of visible crystal grains.