gemstone

Bumblebee Jasper

Fibrous Calcite and Orpiment/Realgar/Pyrite mix

Hardness on Mohs scale is about 5 (due to calcite content), vibrant yellow, orange, and black banded or mottled colors resembling bumblebee patterns, vitreous to pearly luster, crystal structure is trigonal/hexagonal.

Identified August 2, 2026More gemstone →

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Physical properties

Formation & geological history

Formed in volcanic hydrothermal vents and fumaroles, specifically around active or dormant volcanoes in Mount Papandayan, West Java, Indonesia.

Uses & applications

Used primarily in lapidary arts, cabochons, and sterling silver jewelry making.

Geological facts

Despite being marketed as 'jasper', it is actually not a true quartz-based jasper. It contains toxic minerals like arsenic sulfide (orpiment and realgar), so polishing requires caution.

Field identification & locations

Easily identified by its striking yellow and black coloration resembling a bumblebee. Found exclusively in Indonesia.

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