African Jade or Kambaba Jasper
Microcrystalline Quartz var. Jasper / Epidote-rich rock · Decorative Stone / Semi-Precious
Crystal System
Trigonal (microcrystalline quartz matrix)
Mineral Group
Silicates (Tectosilicates)
Chemical Formula
SiO2 with complex silicate inclusions including epidote, quartz, and iron oxides
Formation Process
Sedimentary or hydrothermal deposition, often involving silica-rich fluids altering volcanic or sedimentary rocks
About This Crystal
An opaque, polished tumbled stone displaying a vibrant mix of turquoise to dark green, earthy yellow-brown patches, and striking bright red spots or veins. The surface is smoothly polished with a vitreous to waxy luster.
Physical Characteristics
Hardness of 6.5 to 7 on the Mohs scale, white streak, conchoidal fracture, cleavage is absent due to microcrystalline structure, specific gravity around 2.65
Optical Properties
Singly or aggregate doubly refractive microcrystalline structure, non-pleochroic, opaque with a smooth waxy-to-vitreous sheen
Hardness & Durability
Origin Region
South Africa, Madagascar, Australia
Hardness & Durability
Mohs hardness of 6.5-7, very good durability and toughness, suitable for daily jewelry wear and handling
Care & Maintenance
Clean with warm soapy water and a soft cloth, avoid harsh chemicals or prolonged harsh ultrasonic cleaning, safe in normal sunlight
Rarity & Value
Common to uncommon, widely available as tumbled stones and carvings, very affordable price range
Special Characteristics
Vivid color contrast between the cool green matrix and warm red spots, completely natural patterns with no common treatments noted
Lore & History
Often associated with emotional healing, tranquility, and grounding energy in modern crystal healing practices; linked traditionally to the heart chakra