The name comes from the Greek chrysos, "gold", and kolla, "glue", in allusion to the name of the material used to solder gold, and was first used by Theophrastus in 315 BCE.
It is of secondary origin and forms in the oxidation zones of copper ore bodies. Associated minerals are quartz, limonite, malachite, azurite, cuprite, chalcopyrite and other secondary copper minerals.It is typically found as botryoidal or rounded masses and crusts, or vein fillings. Because of its light color, it is sometimes confused with turquoise.
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