mineral

Polished brecciated jasper pendant

Jasper, an opaque microcrystalline variety of chalcedony (mostly SiO₂), with iron-oxide staining and likely brecciation

AI-generated identification · may be incorrect

Hardness about 6.5–7 Mohs; orange-red, yellow, brown, and gray mottling; opaque, waxy to vitreous luster after polishing; cryptocrystalline quartz with no visible cleavage. The metal setting and cord are human-made, but the pendant contains genuine geological material.

Identified September 2, 2026More mineral →

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At a glance

Common name: Polished brecciated jasper pendant
Scientific name: Jasper, an opaque microcrystalline variety of chalcedony (mostly SiO₂), with iron-oxide staining and likely brecciation
Category: mineral
Identified: September 2, 2026
Method: Standard

AI Estimated Value

Approximately $10–$40 as a typical handmade pendant; $50–$150 if the stone has unusually attractive patterning, quality workmanship, or documented provenance.

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

Jasper forms when silica-rich fluids replace or cement volcanic, sedimentary, or brecciated rock, commonly incorporating iron oxides that produce red, orange, and yellow colors. Its exact geological age and locality cannot be determined from the photograph.

Uses & applications

Used for cabochons, pendants, beads, carvings, and ornamental objects; occasionally as a minor decorative stone in architecture. Its appeal is primarily its pattern and polish rather than rarity.

Geological facts

The colorful patches likely reflect iron minerals such as hematite or goethite; blue-gray areas may be contrasting silica or matrix. Jasper is a variety of chalcedony, not technically a separate mineral species.

Field identification & locations

Identify by its opaque appearance, very fine texture, quartz-like hardness, and inability to scratch with a steel knife easily; it should not show glassy transparency. Common sources include India, Madagascar, Brazil, Australia, Mexico, and the western United States.