mineral

Polished jasper pendant

Jasper, an opaque, microcrystalline variety of quartz (SiO₂)

AI-generated identification · may be incorrect

The pendant appears to be polished, mottled yellow-brown jasper with darker and reddish patches. Quartz has Mohs hardness 7, a vitreous luster when freshly broken, and a trigonal crystal structure; jasper is too fine-grained to show visible crystals or cleavage.

Identified October 2, 2026More mineral →

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Physical properties

Formation & geological history

Jasper forms when silica-rich fluids fill cavities or replace sediment, incorporating mineral impurities that create its colors. Deposits occur in many geological settings and ages; this image cannot establish the exact variety or source.

Uses & applications

Used for pendants, beads, carvings, and decorative objects; it has no major industrial use compared with ordinary quartz.

Geological facts

Jasper’s colors and patterns vary widely, and trade names often describe appearance or locality rather than a distinct mineral species.

Field identification & locations

Its opaque, patterned appearance and ability to take a smooth polish are typical of jasper, but visual identification alone is not definitive. Jasper occurs worldwide, including in India, Australia, Brazil, and the United States.