gemstone

Likely polished red-and-blue jasper (identification uncertain from the image)

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

AI-generated identification · may be incorrect

Appears smooth and tumbled, with mottled red and blue-gray coloring and a dull to waxy luster. Quartz has Mohs hardness 7 and trigonal crystal structure; jasper is typically opaque and has no visible cleavage.

Identified September 24, 2026More gemstone →

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Physical properties

Formation & geological history

Jasper forms as silica-rich fluids fill or replace rock, with iron and other impurities producing colors. Its formation age and source cannot be determined from the image.

Uses & applications

Tumbled jasper is used in jewelry, beads, ornaments, and collections; it has little industrial or construction use.

Geological facts

The red coloration in jasper commonly comes from iron oxides; the blue-gray areas may reflect other minerals or lighting.

Field identification & locations

Check for natural-looking color variation and hardness, but the image alone cannot confirm jasper or rule out dyed stone. Jasper occurs worldwide, including in Brazil, India, Australia, and the United States.