Zurlite is a noun that refers to a rare and distinctive mineral, typically found in association with other secondary copper minerals. It belongs to the monoclinic crystal system and is characterized by its bluish-green or greenish-blue color. The name "zurlite" is derived from its original discovery locality, the Zurla mine situated in the Lake District of Cumbria, England.
In terms of physical properties, zurlite has a relatively low hardness, typically ranging from 3 to 4 on the Mohs scale. Its luster is typically vitreous, and it exhibits a perfect cleavage in one direction. Zurlite is translucent to transparent and has a specific gravity ranging from 3.4 to 3.5.
Chemically, zurlite is a hydrated copper arsenate sulfate mineral, which contains elements such as copper, arsenic, sulfur, and oxygen. It is often found in the oxidized zone of copper-bearing mineral deposits, occurring as small prismatic or acicular crystals, as well as crust-like or botryoidal aggregates.
Due to its rarity, zurlite is primarily sought after by mineral collectors and enthusiasts. Its vibrant, unique color and association with copper mineralization make it a valuable addition to mineral collections. However, it should be handled with care and stored away from sources of heat and direct sunlight, as prolonged exposure may cause fading or alteration in its color.
