mineral

Fancy Jasper

Cryptocrystalline Quartz (SiO2) with iron oxide inclusions

Hardness: 6.5-7 Mohs. Color: Multi-colored (red, green, mauve, yellow). Luster: Vitreous to waxy. Structure: Trigonal (microcrystalline). No cleavage. Specific gravity: 2.6-2.9.

Hardness: 6
Color: Multi-colored (red, green, mauve, yellow)
Luster: Vitreous to waxy

Identified June 21, 2026More mineral →

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Physical properties

Hardness: 6.5-7 Mohs. Color: Multi-colored (red, green, mauve, yellow). Luster: Vitreous to waxy. Structure: Trigonal (microcrystalline). No cleavage. Specific gravity: 2.6-2.9.

Formation & geological history

Formed via the deposition of silica from hydrothermal solutions or groundwater into cavities in volcanic or sedimentary rocks. The colors are derived from varying concentrations of hematite, goethite, and clay minerals.

Uses & applications

Primarily used for lapidary work including cabochons, beads, decorative carvings, and as a popular tumbled stone for metaphysical and collecting purposes.

Geological facts

Jasper was a favorite gem in the ancient world; its name can be traced back in Arabic, Persian, Greek, and Latin. 'Fancy Jasper' specifically refers to the variety containing a high diversity of colors in a single stone.

Field identification & locations

Identify by its characteristic opaque, multi-colored swirling patterns and its ability to scratch glass while resisting a steel blade. Commonly found in India, Brazil, and Africa. Collectors should look for vibrant contrast between colors.

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