Boleite was to start with uncovered in Boleo, Mexico in 1891, in the area in the Baja peninsula that has become well known for scarce minerals. Boleite is these types of an strange and complicated mineral that the definition of its chemical composition and crystal framework have gone through a number of revisions because its to start with discovery.
The main specimens of boleite had been discovered by Eduoard Cumenge, a French mining engineer. Another scarce halide mineral through the identical location, with the same construction and a rather diverse chemical composition, was named cumengite in honor of Cumenge.
There are lots of functions of boleite that make it of unique curiosity to collectors. For another thing, it's an unusual chemical composition, remaining a hydrated direct copper silver chloride hydroxide. It consists of sizeable quantities of such metals, with about 49% guide, 14% copper and 9% ΧειÏοποίητα Δαχτυλίδια silver. Secondly, it's got an interesting crystal structure, considering the fact that boleite ΑσημÎνια Δαχτυλίδια is usually pseudocubically twinned. That is, ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια Each individual cube-like crystal of boleite is Δαχτυλίδια Γυναικεία definitely composed of a few rectangular box-like crystals oriented at proper angles to one another. Boleite also has an extremely attractive indigo shade and a few incredibly uncommon clear crystals happen to be Slash as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, for example fluorite, boleite is quite comfortable, with a Mohs hardness score of only three to 3.five. It has a vitreous to pearly luster. It truly is an unusually dense mineral, with a specific gravity of 5.05. Only some minerals, like hematite and cassiterite, have an increased density. Boleite's refractive index can also be incredibly higher at two.03-two.05; greater than sapphire, sphene and demantoid garnet.
Besides cumengite, there are a number of other minerals connected to boleite, such as pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Together with the deposit in Baja, Mexico, boleite has been found in Broken Hill in Δαχτυλιδια Φθηνα New South Wales, Australia; during the Mammoth District of Arizona in the United States; and while in the Mendip Hills of Somerset, England.
