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Chrysocolla and Tenorite

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Chrysocolla And Tenorite - SKU_A_1595NEW

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From: Tyrone, New Mexico, USA.

Hardness: 2.5-3.5 and 3.5-4 on the Moh's scale respectively.

Chrysocolla is a hydrated copper silicate mineral. 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 BC. It is of secondary origin and forms in the oxidation zones of copper ore bodies. Associated minerals are quartz, limonite, azurite, malachite, cuprite, 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.

Tenorite is a copper oxide mineral. Tenorite occurs in the weathered or oxidized zone associated with deeper primary copper sulfide orebodies. Tenorite commonly occurs with chrysocolla and the copper carbonates, azurite and malachite. The dull grey-black color of tenorite contrasts sharply with the often intergrown blue chrysocolla. Tenorite was named in 1841 for the Italian botanist Michele Tenore (1780-1861).