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Malachite is a copper carbonate hydroxide mineral, with the formula Cu 2 CO 3 (OH) 2.This opaque, green-banded mineral crystallizes in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses, in fractures and deep, underground spaces, where the water table and hydrothermal fluids provide the means for chemical precipitation.
Azurmalachite is a mixture of azurite and malachite. [1] It is alternatively called azuromalachite, azurite-malachite and malachite-azurite. [2] Azurmalachite has a distinctive mottled green and blue coloration. It is relatively rare but can sometimes be found above copper deposits.
Brochantite is a sulfate mineral, one of a number of cupric sulfates.Its chemical formula is Cu 4 SO 4 (OH) 6. [2] [3] [4] Formed in arid climates or in rapidly oxidizing copper sulfide deposits, it was named by Armand Lévy for his fellow Frenchman, geologist and mineralogist A. J. M. Brochant de Villiers.
Pseudomalachite is a phosphate of copper with hydroxyl, named from the Greek for "false" and "malachite", because of its similarity in appearance to the carbonate mineral malachite, Cu 2 (CO 3)(OH) 2. Both are green coloured secondary minerals found in oxidised zones of copper deposits, often associated with each other.
Shattuckite is a copper silicate hydroxide mineral with formula Cu 5 (SiO 3) 4 (OH) 2.It crystallizes in the orthorhombic – dipyramidal crystal system and usually occurs in a granular massive form and also as fibrous acicular crystals.
Botryoidal habit of gibbsite crystals. A botryoidal (/ ˌ b ɒ t r i ˈ ɔɪ d əl / BOT-ree-OY-dəl) texture or mineral habit, is one in which the mineral has an external form composed of many rounded segments, named for the Ancient Greek βότρυς (bótrus), meaning "a bunch of grapes". [1]
Copper oxides include chrysocolla, malachite and azurite. The mine's concentrator has a capacity of 75,000 metric tons per day using stockpile leaching, with pressure leaching for molybdenum. [2] Copper was first mined at the site in 1882. The town of Bagdad, Arizona was built as a company town to house mine workers. [2]
Malachite green is also used in endospore staining, since it can directly stain endospores within bacterial cells; here a safranin counterstain is often used. Malachite green is a part of Alexander's pollen stain. Malachite green can also be used as a saturable absorber in dye lasers, or as a pH indicator between pH 0.2–1.8. However, this use ...