sedimentary

Green Jasper

Silicon Dioxide (SiO2) with impurities

AI-generated identification · may be incorrect

Hardness: 6.5-7 (Mohs); Color: Deep green with possible minor inclusions; Luster: Vitreous to waxy (when polished); Crystal Structure: Microcrystalline; Specific Gravity: 2.58-2.91

Hardness: 6
Color: Deep green with possible minor inclusions
Luster: Vitreous to waxy (when polished)

Identified April 9, 2026More sedimentary →

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Physical properties

Hardness: 6.5-7 (Mohs); Color: Deep green with possible minor inclusions; Luster: Vitreous to waxy (when polished); Crystal Structure: Microcrystalline; Specific Gravity: 2.58-2.91

Formation & geological history

Formed when silica-rich fluids permeate volcanic or sedimentary rocks, often originating in hydrothermal environments or via metamorphic transformation of chert.

Uses & applications

Used primarily for ornamental jewelry, lapidary arts, cabochons, and as a healing stone in metaphysical practices.

Geological facts

Green Jasper was highly prized in the ancient world for its color; it was often referred to as 'rain-bringer' in various cultures and used in cylinder seals.

Field identification & locations

Identified by its opaque nature, high hardness (cannot be scratched by a steel knife), and smooth, waxy feel when polished. Commonly found in Brazil, India, and Australia.