mineral

Red Jasper (Beach Pebble)

Jasper (Cryptocrystalline Quartz, SiO2)

Hardness 6.5-7 on Mohs scale; reddish-brown to dark crimson with translucent quartz inclusions; waxy to vitreous luster when wet or polished; microcrystalline/trigonal structure; smooth water-worn pebble texture; conchoidal fracture; specific gravity ~2.65.

Identified July 22, 2026More mineral →

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Physical properties

Formation & geological history

Formed through the deposition of silica-rich solutions in hydrothermal veins, volcanic rocks, or marine sedimentary environments where iron oxide (hematite) inclusions impart the characteristic red coloration. Naturally rounded and polished by coastal or river wave action.

Uses & applications

Popular among rockhounds for beachcombing, lapidary art, wire-wrapping, cabochons, tumbling, decorative ornamental stones, and hand-carvings.

Geological facts

Red jasper gets its rich reddish-brown hue from microscopic inclusions of hematite (iron oxide). Beach-tumbled jasper pebbles are naturally smoothed by years of mechanical attrition from ocean waves and sand.

Field identification & locations

Identify by its rich red to brownish-red opaque body with smooth, rounded contours and characteristic waxy surface. Commonly found along gravelly ocean beaches, riverbeds, and volcanic coastlines worldwide. Scratch resistant to steel.

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