sedimentary

Brecciated jasper (likely poppy jasper or mookaite-type jasper)

Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide pigments and breccia fragments

AI-generated identification · may be incorrect

Hardness about 6.5–7 Mohs; opaque orange-red, yellow, cream, brown, and gray colors; waxy to dull luster; cryptocrystalline quartz with no visible cleavage, commonly fractured and vein-filled. The slab appears polished or cut and contains angular multicolored breccia clasts.

Identified September 17, 2026More sedimentary →

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At a glance

Common name: Brecciated jasper (likely poppy jasper or mookaite-type jasper)
Scientific name: Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide pigments and breccia fragments
Category: sedimentary
Identified: September 17, 2026
Method: Standard

AI Estimated Value

Approximately $10–$60 for a piece of this size and quality; exceptional polished slabs or provenance-specific material may sell for $75–$200.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Forms when silica-rich fluids cement and replace fine volcanic or sedimentary material, with iron oxides producing the red-orange coloration; brecciation reflects repeated fracturing and cementation. Exact geological age cannot be determined visually; jasper deposits range from Precambrian to Cenozoic.

Uses & applications

Used for cabochons, carvings, beads, polished slabs, lapidary décor, and occasionally ornamental stone; not generally used as structural building stone.

Geological facts

“Poppy jasper” is a trade name applied to vividly spotted red jasper, while “mookaite” properly refers to colorful radiolarian chert from Western Australia; visual identification alone cannot establish the locality.

Field identification & locations

Identify by its opaque color zones, waxy quartz texture, high hardness, and resistance to scratching by steel; it should not fizz in dilute acid. Common jasper occurs worldwide, especially in volcanic and hydrothermal terrains.