Jasper
Quartz var. Jasper · Decorative Stone and Mineral Specimen
Crystal System
Trigonal, microcrystalline habit with massive or compact structure
Mineral Group
Silicates, Tectosilicates
Chemical Formula
SiO2
Formation Process
Sedimentary and hydrothermal deposition, often forming from silica-rich fluids replacing organic material or filling cavities in volcanic rocks
About This Crystal
An opaque, fine-grained microcrystalline quartz specimen exhibiting a striking combination of reddish-orange, brownish-red, and greyish-green coloration with mottled patterns and dark dendritic inclusions
Physical Characteristics
Opaque transparency, waxy to dull luster, uneven to conchoidal fracture, white streak, specific gravity of approximately 2.65, brittle tenacity, no cleavage
Optical Properties
Uniaxial positive with double refraction, though optical phenomena are typically masked by microcrystalline structure and opacity
Hardness & Durability
Origin Region
Found worldwide including India, Madagascar, Russia, Brazil, and the United States
Hardness & Durability
Mohs hardness of 6.5 to 7, good toughness, high chemical stability, excellent wearability for jewelry use
Care & Maintenance
Clean with warm soapy water and a soft brush, avoid harsh acids and prolonged exposure to direct, intense sunlight
Rarity & Value
Common and widely available, value depends heavily on unique color patterns, polishability, and size of the specimen
Special Characteristics
Often features distinct multi-colored banding, orbicular patterns, or dendritic inclusions that create picturesque natural scenes
Lore & History
Historically revered by ancient civilizations including the Egyptians, Greeks, and Native Americans as a sacred stone of grounding, protection, and nurturing energy, associated primarily with the root chakra in modern crystal healing