mineral
Bumblebee Jasper
Fibrous Calcite and Quartz with Volcanic Matter (CaCO3 / SiO2)
Hardness of 5-7 on the Mohs scale, vibrant colors including yellow, orange, and black bands, vitreous to earthy luster, trigonal crystal system, specific gravity around 2.6-2.9.
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Physical properties
Hardness of 5-7 on the Mohs scale, vibrant colors including yellow, orange, and black bands, vitreous to earthy luster, trigonal crystal system, specific gravity around 2.6-2.9.
Formation & geological history
Formed in volcanic hydrothermal environments, specifically around fumaroles on Mount Papandayan in West Java, Indonesia. Estimated to be relatively recent in geological terms due to its active volcanic association.
Uses & applications
Used primarily in lapidary arts, cabochons for jewelry, and as a decorative display specimen for mineral collectors.
Geological facts
Despite its trade name, Bumblebee Jasper is not actually a true jasper (microcrystalline quartz). It is a combination of volcanic ash, anhydrite, hematite, sulfur, and arsenic, making it important to handle with care (wash hands after working with raw material).
Field identification & locations
Easily identified by its striking bright yellow, orange, and black banded patterns mimicking bumblebee stripes. Found exclusively on the island of Java, Indonesia.
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