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Vivid full-color illustrations representing life among the dinosaurs
including skeletal structure and footprints
The rich purple color is due to iron and manganese inclusions
About the size and shape of a bent hotdog
Geology and landscapes
Bladed Malachite & Chrysocolla Specimen gems-minerals Vivid full-color illustrations representing lifeChrysocolla is a light blue to bluish green copper based mineral. It typically forms as a psuedomorph after other copper based minerals and rarely forms crystals, tending to form in lumps, crusts or botryoidal masses. It can form very attractive, multi colored specimens, often associated with malachite and azurite. Malachite is a green copper carbonate hydroxide mineral, one of the first ores to be used to produce copper metal. Has been used as a