Boleite was very first discovered in Boleo, Mexico in 1891, inside of a location on the Baja peninsula that is becoming popular for uncommon minerals. Boleite is this kind of an unusual and sophisticated mineral the definition of its chemical composition and crystal structure have been through various revisions due to the fact its very first discovery.
The very first specimens of boleite were found out by Eduoard Cumenge, a French mining engineer. One more uncommon halide mineral from the very same area, with a similar framework and a slightly different chemical composition, was named cumengite in honor of Cumenge.
There are plenty of characteristics of boleite that make it of individual curiosity to collectors. For one thing, it's an uncommon chemical composition, remaining a hydrated direct copper silver chloride hydroxide. It consists of sizeable quantities of such metals, with about forty nine% lead, fourteen% copper and 9% silver. Secondly, it's got an interesting crystal structure, due to the fact boleite is always pseudocubically twinned. That may be, Every single cube-like crystal of boleite is in fact composed of 3 rectangular box-like crystals oriented at right angles to one another. Boleite also has a very beautiful indigo color and many extremely scarce transparent crystals are actually Lower as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, which include fluorite, boleite is fairly tender, using a Mohs hardness ranking of only three Δαχτυλιδια ΜονοπετÏα to 3.five. It has a vitreous to pearly luster. It can be an unusually dense mineral, with a selected gravity of 5.05. Only some minerals, like hematite Δαχτυλιδια Γυναικεια and cassiterite, have an increased density. Boleite's refractive index can also be incredibly higher at two.03-two.05; larger than sapphire, sphene and demantoid garnet.
In combination with cumengite, Δαχτυλιδια bulgari there are a number of other ΛευκόχÏυσα minerals connected to boleite, such as pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Besides the deposit Δαχτυλιδια Γυναικεια in Baja, Mexico, boleite has been present in Damaged Hill in New South Wales, Australia; during the Mammoth District of Arizona in The us; and from the Mendip Hills of Somerset, England.
