sedimentary

Picture jasper pendant

Silicified sedimentary jasper, chiefly microcrystalline quartz (SiO₂) with iron-oxide and other mineral inclusions

AI-generated identification · may be incorrect

Opaque, polished yellow-tan stone with dark branching and rounded patterns; quartz-rich jasper has Mohs hardness about 6.5–7 and a waxy to vitreous luster. The pictured stone is set in metal, so its exact variety cannot be confirmed from appearance alone.

Identified October 8, 2026More sedimentary →

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Physical properties

Formation & geological history

Jasper forms when silica-rich fluids replace or fill sediment, volcanic ash, or other material; its patterns reflect mineral impurities and sedimentary structures. Deposits occur in many regions and span a wide range of geological ages.

Uses & applications

Used for cabochons, pendants, beads, and ornamental objects; jasper is also collected as a decorative lapidary stone.

Geological facts

“Picture jasper” is a descriptive trade name for patterned jasper whose markings resemble landscapes or maps; the pendant’s silver-colored setting is not identifiable from the image.

Field identification & locations

Look for an opaque, silica-hard stone with natural, irregular patterns that continue through the polished surface; common sources include the western United States and parts of Africa and Australia. Value depends on pattern, size, workmanship, and setting.