Bumblebee Jasper
Quartz-Calcite-Anhydrite aggregate (often marketed as Bumblebee Jasper, technically a fibrous carbonate-silicate rock) · Decorative Stone and Collector Mineral
Crystal System
Trigonal (Quartz/Calcite components)
Mineral Group
Silicate and Carbonate composite
Chemical Formula
SiO2 mixed with CaCO3, CaSO4, and sulfur/arsenic inclusions
Formation Process
Hydrothermal and volcanic activity, formed in fumaroles where hot mineral-rich springs deposit minerals in volcanic cavities
About This Crystal
A polished small sphere featuring distinct, vibrant banding and patches of bright yellow, orange, and earthy grey-black. The material is mostly opaque with a smooth, glossy, vitreous to waxy polish, showing characteristic concentric and layered deposition patterns reminiscent of wasp or hornet coloration.
Physical Characteristics
Colors include bright yellow, orange, grey, and black; white streak; no true cleavage due to massive/microcrystalline aggregate nature; uneven to conchoidal fracture; specific gravity around 2.6 to 2.9; brittle tenacity
Optical Properties
Aggregates are generally opaque; refractive index varies between the mineral components roughly from 1.48 to 1.66; doubly refractive where crystalline
Hardness & Durability
Origin Region
Mt. Papandayan, Java, Indonesia
Hardness & Durability
Mohs hardness varies from 5 to 7 depending on the localized ratio of softer calcite/sulfur to harder quartz; moderate durability, sensitive to acids due to carbonate content
Care & Maintenance
Clean with mild soapy water and a soft cloth; avoid ultrasonic cleaners, harsh chemicals, and prolonged exposure to acids or direct sunlight; store separately to prevent scratching
Rarity & Value
Uncommon to Rare; valued for its striking, unusual natural coloration and patterns; prices vary widely based on size, polish, and pattern definition
Special Characteristics
Contains natural sulfur and arsenic-bearing minerals (such as realgar or orpiment), meaning rough specimens should be handled with care and washed after handling
Lore & History
A relatively modern discovery from Indonesia; popular in contemporary crystal healing and lapidary arts. In crystal lore, it is often associated with the solar plexus chakra, believed to promote high energy, vitality, and courage, though these are traditional spiritual beliefs rather than scientific claims.