sedimentary
Zebra Jasper
Silicified sedimentary rock (SiO2) with mineral inclusions
Hardness: 6.5-7 (Mohs scale); Color: Cream, tan, or white with dark brown or grey streaks; Luster: Vitreous to waxy; Texture: Fine-grained, opaque
- Hardness
- 6
- Color
- Cream, tan, or white with dark brown or grey streaks
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5-7 (Mohs scale); Color: Cream, tan, or white with dark brown or grey streaks; Luster: Vitreous to waxy; Texture: Fine-grained, opaque
Formation & geological history
Formed through the silification of sediments or volcanic ash where mineral impurities create rhythmic banding patterns. It is typically found in ancient sedimentary deposits around the globe.
Uses & applications
Primarily used for decorative purposes including lapidary arts, jewelry (cabochons and beads), and as a popular stone for meditation and crystal collecting.
Geological facts
Despite being called 'jasper' in the trade, zebra jasper is often a type of metamorphosed or silicified limestone or fine-grained sedimentary rock rather than a pure chalcedony jasper.
Field identification & locations
Identified by its distinctive 'zebra-like' stripes or splotches on a lighter ground color. Commonly found in South Africa, Russia, and India. It is a favorite for tumbled stone collections.
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