Red Jasper

Physical Properties

Hardness: 6.5-7 (Mohs scale); Color: Brick red to brownish-red with dark veins; Luster: Vitreous to waxy; Crystal structure: Trigonal (microcrystalline); Cleavage: None (conchoidal fracture); Specific gravity: 2.58–2.91.

Formation & Geological History

Formed in an environment where silica-rich fluids permeate through volcanic or sedimentary rocks, depositing quartz in cavities. Its red color comes from high concentrations of iron oxide (hematite) during the mineralization process.

Uses & Applications

Commonly used for lapidary work including cabochons, beads, and tumbled stones for jewelry. It is also highly popular in the metaphysical and gemstone collecting communities.

Geological Facts

Jasper has been used as a gemstone since antiquity; it was known as the 'supreme nurturer' in ancient cultures and was often used in seals and amulets in Mesopotamia and Egypt.

Field Identification & Locations

Identify in the field by its deep red color, heavy weight (high density), and its inability to be scratched by a steel knife. It is frequently found in riverbeds or coastal areas as water-worn pebbles.

Identified on: 4/22/2026

Mode: Standard