Red Jasper
Quartz var. Jasper · Semi-Precious Gemstone and Decorative Stone
Crystal System
Trigonal, massive or microcrystalline habit
Mineral Group
Silicates (Tectosilicate subgroup)
Chemical Formula
SiO2
Formation Process
Sedimentary and hydrothermal processes involving silica-rich precipitation, often associated with volcanic ash or iron-rich environments.
About This Crystal
A smooth, tumbled stone of deep reddish-brown coloration, exhibiting an opaque transparency and a waxy to vitreous luster. Surface shows a polished texture typical of tumbled mineral specimens.
Physical Characteristics
Rich red body color due to iron oxide impurities, white streak, no true cleavage, conchoidal fracture, specific gravity around 2.58-2.91, brittle tenacity, generally inert to magnetism and UV light.
Optical Properties
Singly or microcrystalline aggregate displaying double refraction under advanced testing, isotropic appearance due to fine-grained nature, non-pleochroic, opaque.
Hardness & Durability
Origin Region
Found worldwide including India, Brazil, Russia, France, Germany, and the USA. Forms in sedimentary and volcanic environments.
Hardness & Durability
Mohs hardness of 6.5 to 7, good toughness and stability, durable enough for everyday jewelry wear with proper setting.
Care & Maintenance
Clean with warm soapy water and a soft cloth. Avoid harsh chemical cleaners and prolonged exposure to direct, intense sunlight. Store separately to prevent scratching softer materials.
Rarity & Value
Common and widely accessible. Value is very affordable, determined mainly by size, polish quality, and vividness of the red color.
Special Characteristics
Opaque microcrystalline structure densely packed with iron oxide impurities, creating solid earthy red tones without chatoyancy or strong optical phenomena.
Lore & History
Historically used by ancient civilizations including the Egyptians and Native Americans for amulets, seals, and talismans. Associated in modern crystal healing traditions with the root chakra, grounding energy, endurance, and stability.