Zebra Jasper
Microcrystalline Quartz var. Jasper · Decorative Stone and Semi-Precious Gemstone
Crystal System
Trigonal, massive or microcrystalline habit
Mineral Group
Silicates (Tectosilicates)
Chemical Formula
SiO2
Formation Process
Sedimentary or hydrothermal deposition where silica-rich fluids fill cavities or replace organic material, incorporating trace minerals that create banded patterns.
About This Crystal
An opaque, polished tumbled stone featuring distinct contrasting bands of dark brownish-black and light pinkish-white stripes resembling zebra patterns. It exhibits a smooth, waxy to vitreous luster with a compact, microcrystalline structure.
Physical Characteristics
Colors include pink, white, and dark brown to black; streak is white; cleavage is none; fracture is conchoidal; specific gravity is approximately 2.58 to 2.91; tenacity is brittle; non-magnetic and generally non-fluorescent.
Optical Properties
Refractive index ranges from 1.544 to 1.553; doubly refractive with aggregate birefringence; pleochroism is absent due to microcrystalline aggregate nature; opaque with no special optical phenomena.
Hardness & Durability
Origin Region
India, Africa, Russia, and the United States
Hardness & Durability
Mohs hardness of 6.5 to 7; good toughness and durability, making it suitable for everyday jewelry wear such as rings and pendants, though harsh impacts should be avoided.
Care & Maintenance
Clean with warm soapy water and a soft cloth; avoid harsh chemical cleaners, prolonged exposure to direct sunlight, and ultrasonic cleaners; store separately to prevent scratching softer stones.
Rarity & Value
Common and widely available; value is determined by the distinctness and symmetry of the pattern, polish quality, and size; typically very affordable, ranging from inexpensive tumbled stones to moderately priced carved items.
Special Characteristics
Notable for its striking natural zebra-like banding and contrasting color zones resulting from iron oxide and other mineral impurities during formation.
Lore & History
Often associated with emotional balance, motivation, and grounding in modern crystal healing practices, linked traditionally to the root chakra, though these are cultural beliefs rather than scientifically validated claims.