1.3.4.2 MalachiteMalachite is the another copper carbonate hydroxide mineral with chemical formula [Cu
2CO
3(OH)
2] formed by the weathering of copper orebodies in the vicinity. The color is bright green (Fig. 1.14) with light green streak. The hardness and
specific gravity varies between 3.5–4.0, and 3.6–4.0, respectively. The mineral in the purest form contains 57.48% Cu. Malachite occurs worldwide including Congo, **on, Zambia, Namibia,
Mexico, Australia, and with the largest deposit/mine in the Urals region, Russia. Malachite has been suitable for mineral pigment in green paints since antiquity, decorative vase, ornamental stone, and
gemstone. Presence of malachite is an excellent surface indicator for copper exploration.
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