Kambaba Jasper 8mm Faceted Rondelle - 8-Inch Quartz14x16mm meaning it forms by replacing

meaning it forms by replacing another mineral’s crystal structure atom by atom with its own crystal structure

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Mohs hardness 7

It is extremely fracture to resistant and has been used for blades and other tools since Neolithic times

a silicate of calcium and magnesium -- from western Canada

Kambaba Jasper 8mm Faceted Rondelle - 8-Inch Quartz14x16mm meaning it forms by replacingKambaba Jasper is a sedimentary stone comprised of microcrystalline Quartz interlaced with Stromatolites ancient fossilized colonies of primeval microorganisms. Stromatolites date back more than three billion years and are the oldest known fossils. Kambaba Jasper is one of the more exotic Jaspers, sometimes referred to as Crocodile Jasper for its deep green color and deep brown or black oval rings reminiscent of crocodile skin.