Brecciated Jasper
Quartz var. Brecciated Jasper · Decorative Stone and Mineral Specimen
Crystal System
Trigonal, massive microcrystalline habit
Mineral Group
Silicates (Tectosilicate subgroup)
Chemical Formula
SiO2 with iron oxide and clay mineral impurities
Formation Process
Sedimentary or hydrothermal fracturing followed by silica-rich fluid infiltration, cementing broken fragments together
About This Crystal
An opaque, water-worn pebble featuring a complex, fragmented pattern of reddish-brown, pink, and cream-colored angular blocks cemented together by secondary quartz or chalcedony veins. The luster is waxy to dull, with a smooth tumbled surface showing high contrast mosaic patterns.
Physical Characteristics
Colors range from brick red and pink to white and brown; streak is white; no distinct cleavage; fracture is conchoidal to uneven; specific gravity is approximately 2.58 to 2.91; tenacity is brittle; non-magnetic and generally non-fluorescent.
Optical Properties
Singly and doubly refractive aggregate (microcrystalline quartz); birefringence is low; opaque with no notable pleochroism, chatoyancy, or dispersion.
Hardness & Durability
Origin Region
Worldwide occurrence; notable deposits in India, Russia, Brazil, Madagascar, and the USA (California, Oregon)
Hardness & Durability
Mohs hardness is 6.5 to 7; good toughness and durability; resistant to scratching by most everyday objects; highly suitable for jewelry and decorative objects.
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid harsh acids or prolonged soaking; store away from harder gemstones to prevent scratching; stable in sunlight and heat.
Rarity & Value
Common and widely available; value is generally low to moderate, determined by the aesthetic appeal of the color contrast, pattern uniqueness, and polish quality; treatments are rare as the natural patterns are already visually striking.
Special Characteristics
Distinctive mosaic or fragmented breccia structure formed by tectonic activity and natural cementation, creating unique landscape-like patterns within each individual stone.
Lore & History
Historically used by ancient peoples for talismans, amulets, and primitive tools. In modern crystal healing traditions, brecciated jasper is associated with grounding, vitality, emotional stability, and the root chakra, though these are cultural and spiritual beliefs rather than scientifically verified properties.