sedimentary

Polished brecciated jasper pendant

Silica-rich jasper (microcrystalline quartz, SiO₂), brecciated and cemented by silica or iron-rich material

AI-generated identification · may be incorrect

Opaque orange, rust-brown and tan angular fragments in a polished cabochon; vitreous to waxy luster. Hardness about 6.5–7 Mohs; microcrystalline quartz, with no visible cleavage and uneven fracture. Exact mineral mix cannot be confirmed from the photograph.

Identified October 3, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed when silica-rich rock broke into angular pieces and the fragments were later cemented, often with iron oxides providing the vivid colors. Jasper deposits form in varied settings and are generally ancient; the image cannot establish a specific age or locality.

Uses & applications

Used for pendants, beads, carvings and ornaments; this piece is set in a metal necklace fitting.

Geological facts

The angular, contrasting fragments are characteristic of brecciated material; polishing highlights the pattern but does not identify a specific jasper variety.

Field identification & locations

Look for opaque, hard material with angular fragments and contrasting cement; quartz-rich jasper commonly occurs in many regions. The reported northwest England location is not enough to establish provenance, and this strongly patterned material may be imported.