Clara Mine, Rankach valley, Oberwolfach, Wolfach, Ortenaukreis, Baden-Württemberg, Germany

Cu₂(CO₃)(OH)₂

Crystal System: monoclinic
Colour: bright green, with shades of green, from light to very dark (nearly black).
Lustre: adamantine, vitreous, silky, dull, earthy
Habitus: common botryoidal or mammillary aggregates. Rare acicular or prismatic crystals
Hardness: 3½ - 4
Fracture: irregular/uneven, sub-conchoidal, fibrous
Cleavage: perfect on {201}, fair on {010}.
Density:  4 g/cm³ 
Origin and geological occurrence: it is a very common secondary Cu mineral in the oxidized portion of Cu deposits.

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Samples:

	5.15 Malachite Polished surface of a botryoidal aggregate of malachite. #carbonates
	5.16 Malachite Green mammillary aggregates of malachite #carbonates
	5.23  Malachite Botryoidal green cluster of malachite.  #economic minerals
	5.25  Malachite Acicular crystals in vugs of limonite. #economic minerals