sedimentary

Bumblebee Jasper

Fossiliferous Calcite containing Orpiment and Realgar

Hardness: 5 on Mohs scale; Color: Concentric bands of yellow, orange, black, and gray; Luster: Waxy to dull; Crystal structure: Trigonal (as calcite); Cleavage: Perfect in three directions (calcite matrix).

Hardness: 5 on Mohs scale
Color: Concentric bands of yellow, orange, black, and gray
Luster: Waxy to dull

Identified May 16, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed from volcanic deposits inside the cracks of a volcano, typically around fumaroles or hydrothermal vents. It is a combination of volcanic ash, anhydrite, sulfur, arsenic, and calcium carbonate. Primary location is Mount Papandayan in Indonesia.

Uses & applications

Primarily used as a decorative stone for lapidary work, including cabochons for jewelry, carvings, and metaphysical collecting. Caution is used due to arsenic content.

Geological facts

Despite its name, it is not a true Jasper because it lacks a high silica content; it is technically a calcium carbonate rock. Its distinctive stripes mimic the patterns of a bumblebee.

Field identification & locations

Identify by its unique 'vibrant bee-like' banding and relatively low hardness compared to true quartz-based jasper. Found almost exclusively in West Java, Indonesia. Collectors should seal the stone to prevent contact with toxic arsenic minerals.

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