Blue copper mine
Blue copper, also known as stone green, is a copper-containing minerals, dark blue or light blue, glass luster, the chemical composition of Cu322, monoclinic crystal, crystal was a column or plate-like, aggregates for the cluster Shaped, radial, bell-like or granular, hardness of 3.5-4, specific gravity of 3.77-3.89. Blue copper in a variety of languages are named in blue, Greek for kuanos, Latin for caeruleum, English for azurite, it is derived from the Arabic language lazhward. Blue copper is often symbiotic with the malachite, the number of times can be used as copper, refined copper, polished into powder can do blue pigment, is commonly used in Chinese painting a pigment, according to its delicate degree of grinding, the color slightly different, In Chinese painting is divided into head green, two green and so on. Large and bright crystal can also be used as a gem or ornamental stone, but because of its soft texture, easy to weather, easy to save. ...