Gemstone profile and identification guide

Bumblebee Jasper

Bumblebee jasper is a trade name for a patterned volcanic-sedimentary composite material, not a true quartz jasper.

4 Mohs Yellow, Black Composite Volcanic-Sedimentary Gem Material (Trade Name)

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Overview

Bumblebee jasper is a trade name for a patterned volcanic-sedimentary composite material, not a true quartz jasper.

Did you know? Despite the name, it is not a true microcrystalline quartz jasper.

Use this profile as a collector reference and educational guide for quick on-page comparison, then validate with the interactive identification system.

Identification

Name: Bumblebee Jasper

Scientific classification: Composite Volcanic-Sedimentary Gem Material (Trade Name)

Hardness: 4 Mohs

Transparency: opaque

Lustre: waxy

Crystal system: Composite aggregate

Primary colour: Yellow

Secondary colour: Black

Colour family: Oranges & Yellows

Distinct yellow-black-orange pattern and lower hardness than true jasper are key distinguishing factors.

Verification Status

Status: verified-core-fields

Reference priority: GIA, Gem-A, Mindat, International Gem Society

Core identity, locality, and physical-property fields reviewed against standard gemological references.

Values are reported as practical gemological ranges where appropriate.

Physical Properties

Hardness category: medium

Hardness value: 4 Mohs

Chemical composition: Mixed calcite, aragonite, sulfur-bearing minerals, and volcanic matrix (not true jasper)

Crystal system: Composite aggregate

Common locations: Indonesia (West Java)

Learn more: Gem-A gemstone education resources.

Colour Variations

High-contrast yellow, orange, black, and white patterned material from Indonesian volcanic settings.

Optical effects: Strong Pattern Contrast

Detailed Gemology

Mineral species: Composite trade material (not single mineral species)

Mineral group: Volcanic-sedimentary aggregate

Chemical formula: Mixed calcite, aragonite, sulfur-bearing minerals, and volcanic matrix (not true jasper)

Mohs hardness: 4

Crystal system: Composite aggregate

Lustre: waxy

Transparency: opaque

Streak: Variable

Cleavage: Variable by component

Fracture: Uneven

Specific gravity: 2.4-2.7 (variable)

Refractive index: Variable by component

Optical phenomena: Pattern contrast

Colour range: Yellow, orange, black, white in bands and swirls

Common inclusions: Sulfur-rich zones, carbonate patches, matrix textures

Geological environment: Volcanic fumarolic/sedimentary sulfur-bearing environments

Principal mining regions: Indonesia (West Java)

Important commercial sources: Commercial bumblebee jasper is sourced from Indonesia and sold under a trade name

Historical significance: A modern trade material popular in contemporary lapidary markets.

Common treatments: Stabilization may be used.

Synthetic or imitation forms: Dyed composites and resin products can imitate it.

Common look-alikes: Dyed jasper composites, man-made resin stones

Jewellery uses: Used in cabochons, beads, and carvings for bold pattern contrast.

Care recommendations: Soft and chemically sensitive; avoid acids, abrasion, and ultrasonic cleaning.

Cross-check profile data with GIA Gem Encyclopedia and Mindat entry for Bumblebee Jasper.

Formation

Forms in volcanic fumarolic or sedimentary volcanic environments with sulfur-rich and carbonate-rich components.

Origin

Commercial bumblebee jasper is sourced from Indonesia and sold under a trade name

Uses

Best for: Used in cabochons, beads, and carvings for bold pattern contrast.

Ideal uses: Statement jewellery and display carvings with protected wear.

Care

Soft and chemically sensitive; avoid acids, abrasion, and ultrasonic cleaning.

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