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The Rock Professor has provided you with a mineral information card. Print on stock paper, and cut out to enhance your rock and mineral products.
To print: with your cursor, highlight the entire card below, right click and select print, then click on "selection" and print.
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THE ROCK PROFESSOR
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MALACHITE
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Malachite is composed of 66% copper and can be used as an ore of copper. It usually forms in layered masses of radiating fibers, forming stalactitic formations which are often polished to beautiful bullseyes or bands. In Russia, it was a favorite stone of the Tsars and was made into columns, surfaces, and vases.
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Chemistry: copper carbonate ♦ Opaque ♦ Luster: from silky to dull ♦ Crystal system: monoclinic prismatic ♦ Moh's hardness: 3.5-4 ♦ Color: bright green ♦ Localities: Ural mountains of Russia, DR Congo, southwestern U.S. copper districts.
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