fossil

Kambaba Jasper (Crocodile Jasper)

Stromatolite Fossil (Silicified Stromatolite / Quartz with Microfossils)

Hardness: 6.5-7 on Mohs scale; Color: Dark forest green with black orbicular swirls and spots; Luster: Vitreous to dull when raw, highly vitreous/waxy when polished; Crystal Structure: Microcrystalline/Trigonal (Cryptocrystalline Quartz); Cleavage: None (conchoidal fracture).

Hardness: 6
Color: Dark forest green with black orbicular swirls and spots

Identified July 25, 2026More fossil →

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Physical properties

Formation & geological history

Formed through the fossilization of ancient cyanobacteria (blue-green algae) colonies called stromatolites, which trapped sediment and became silicified into quartz-rich rock over three billion years ago (Precambrian era). Primarily sourced from Madagascar.

Uses & applications

Used primarily as decorative polished stones, lapidary cabochons, carvings, beads, and popular in metaphysical and crystal healing communities.

Geological facts

Despite being called 'jasper', Kambaba Jasper is technically a fossilized stromatolite matrix composed of cyanobacterial colonies that are over 3 billion years old, making it one of the oldest living organism fossils on Earth.

Field identification & locations

Identified by its distinct deep green base color with swirling, orbicular black rings or orb-like structures resembling eyes or crocodile skin. Found abundantly in Madagascar and parts of South Africa. Highly valued by collectors for its unique orbicular patterns.

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