Gemstone profile and identification guide

Zebra Jasper

Zebra jasper is a patterned ornamental stone category defined by high-contrast striping.

6.75 Mohs Black, White Trade Name Patterned Jasper/Chert Material
Zebra Jasper

Overview

Zebra jasper is a patterned ornamental stone category defined by high-contrast striping.

Did you know? Many zebra-named stones in trade are sold by appearance category rather than strict species.

Use this profile as a collector reference and educational guide for quick on-page comparison, then validate with the interactive identification system.

Identification

Name: Zebra Jasper

Scientific classification: Trade Name Patterned Jasper/Chert Material

Hardness: 6.75 Mohs

Transparency: opaque

Lustre: waxy

Crystal system: Trigonal aggregate context

Primary colour: Black

Secondary colour: White

Colour family: Blacks

Name reflects pattern style; exact geological classification can vary by source.

Verification Status

Status: verified-core-fields

Reference priority: GIA, Gem-A, Mindat, International Gem Society

Core identity, locality, and physical-property fields reviewed against standard gemological references.

Final remaining profile set completed in targeted pass.

Physical Properties

Hardness category: hard

Hardness value: 6.75 Mohs

Chemical composition: Silica-rich patterned rock (often jasper/chert aggregate)

Crystal system: Trigonal aggregate context

Common locations: Multiple decorative stone sources; trade-name usage varies by supplier

Learn more: Gem-A gemstone education resources.

Colour Variations

Striped black-white patterned decorative stone sold as zebra jasper.

Optical effects: Striped Pattern

Detailed Gemology

Mineral species: Patterned silica-rich trade material

Mineral group: Ornamental rock category

Chemical formula: Silica-rich patterned rock (often jasper/chert aggregate)

Mohs hardness: 6.75

Crystal system: Trigonal aggregate context

Lustre: waxy

Transparency: opaque

Streak: White

Cleavage: None to variable by matrix

Fracture: Conchoidal to uneven

Specific gravity: 2.58-2.75 (variable)

Refractive index: Approx. chalcedony range for silica-dominant material

Optical phenomena: None typically diagnostic

Colour range: Black-white-grey striping

Common inclusions: Species-dependent inclusions and growth features

Geological environment: Species-dependent

Principal mining regions: Multiple decorative stone sources; trade-name usage varies by supplier

Important commercial sources: Zebra jasper is a trade descriptor for striped patterned material and may include non-jasper lithologies

Historical significance: Recognized in gemological and lapidary trade.

Common treatments: Treatment status varies by product; disclose when present.

Synthetic or imitation forms: Dyed and composite imitations exist.

Common look-alikes: Species-dependent look-alikes.

Jewellery uses: Used in beads, cabochons, carvings, and decorative pieces.

Care recommendations: Generally durable for beads and cabochons; avoid severe impact on thin cuts.

Cross-check profile data with GIA Gem Encyclopedia and Mindat entry for Zebra Jasper.

Formation

Forms through layered sedimentary/metamorphic silica-rich processes, depending on source material.

Origin

Zebra jasper is a trade descriptor for striped patterned material and may include non-jasper lithologies

Uses

Best for: Used in beads, cabochons, carvings, and decorative pieces.

Ideal uses: Graphic black-white jewelry and design accents.

Zebra Jasper FAQ

How can I identify Zebra Jasper?

Compare hardness (6.75 Mohs), crystal system (Trigonal aggregate context), colour profile, and lustre (waxy) with your sample. Then cross-check related gemstones listed above.

What colour range does Zebra Jasper appear in?

Striped black-white patterned decorative stone sold as zebra jasper.

Where is Zebra Jasper commonly used?

Graphic black-white jewelry and design accents.. For maintenance, follow the care guidance in this profile.