sedimentary
Bumblebee Jasper (Tumbled)
Fibrous calcite-quartz aggregate with sulfur and volcanic matter
AI-generated identification · may be incorrectHardness of 5 on the Mohs scale, vibrant yellow, orange, and black banded coloration with a vitreous to earthy luster and microcrystalline structure.
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Physical properties
Hardness of 5 on the Mohs scale, vibrant yellow, orange, and black banded coloration with a vitreous to earthy luster and microcrystalline structure.
Formation & geological history
Formed in active volcanic fumaroles and hot spring deposits in Mount Papandayan, Indonesia, typically during recent geological epochs.
Uses & applications
Primarily used as a decorative stone, tumbled specimen, and for handcrafted jewelry in the lapidary market.
Geological facts
Despite its common trade name, true bumblebee jasper contains no actual jasper; it is an energetic mixture of carbonate minerals, sulfur, and arsenic oxides.
Field identification & locations
Identified by its distinctive hornet-like yellow and black banding, though collectors should handle raw forms carefully due to toxic mineral inclusions.
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