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Liroconite is a complex mineral: Hydrated copper aluminium arsenate hydroxide, with the formula Cu2AlAsO4(OH)4·4H2O. It is a vitreous monoclinic mineral, colored bright blue to green, often associated with malachite, azurite, olivenite, and clinoclase. It is quite soft, with a Mohs hardness of 2 - 2.5, and has a specific gravity of 2.9 - 3.0.

Additional recommended knowledge

It was first identified in 1825 in the tin and copper mines of Devon and Cornwall, England. Although it remains quite rare it has subsequently been identified in a variety of locations including France, Germany, Australia, New Jersey and California.

The type locality for Liroconite is Wheal Gorland in St Day, Cornwall in the United Kingdom.[1]


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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Liroconite". A list of authors is available in Wikipedia.
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