sedimentary

Fancy Jasper (Bloodstone variety)

Silicon Dioxide (SiO2) with iron oxide inclusions

AI-generated identification · may be incorrect

Hardness: 6.5-7 (Mohs scale); Color: Variegated greens, reds, and browns; Luster: Vitreous to waxy after polishing; Crystal structure: Microcrystalline/Trigonal (Cryptocrystalline); Cleavage: None; Specific gravity: 2.58-2.91

Hardness: 6
Color: Variegated greens, reds, and browns
Luster: Vitreous to waxy after polishing

Identified May 2, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed from silica-rich groundwater percolating through sedimentary or volcanic rocks, depositing chalcedony in cavities. The colors come from mineral inclusions like chlorite (green) and hematite (red).

Uses & applications

Primarily used for lapidary work including cabochons, beads, tumbling for collectors, and ornamental carvings. It is also significant in metaphysical and healing practices.

Geological facts

Also known as Indian Agate or Bloodstone, it has been used since antiquity as a gemstone and seal-stone in Babylon and Rome. Its name comes from the Greek 'iaspis', meaning 'spotted stone'.

Field identification & locations

Identify by its multicolored 'forest-like' pattern, opacity, and extreme hardness (cannot be scratched by a steel knife). Commonly found in river beds or quarries in India, Brazil, and Africa.