Boleite was initially found out in Boleo, Mexico in 1891, inside a region of the Baja peninsula that happens to be renowned for unusual minerals. Boleite is these kinds of an uncommon and complex mineral which the definition of its chemical composition and crystal construction have undergone quite a few revisions considering the fact that its to start with discovery.
The 1st specimens of boleite ended up identified by Eduoard Cumenge, a French mining engineer. Another scarce halide mineral with the identical place, with an analogous framework and a slightly distinctive chemical composition, was named cumengite in honor of Cumenge.
There are plenty of options of boleite which make it of distinct interest to collectors. For another thing, it has an unconventional chemical composition, staying a hydrated lead copper silver chloride hydroxide. It contains major quantities of such Δαχτυλιδια Φθηνα metals, with about 49% guide, 14% 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 Δαχτυλιδια ΜονοπετÏα fact composed of 3 rectangular box-like crystals oriented at right angles to one another. Boleite also has a really beautiful indigo colour and several very exceptional transparent crystals are 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 3 to three.five. It has a vitreous to pearly luster. It is actually an unusually dense mineral, with a particular gravity of five.05. Only a few minerals, for example hematite and cassiterite, have a higher density. Boleite's refractive index is additionally very large at two.03-two.05; greater than sapphire, sphene and demantoid garnet.
In addition to cumengite, There are a variety of other minerals Δαχτυλιδια swarovski associated with boleite, like pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
In addition to the deposit in Baja, Mexico, boleite has become located in Δαχτυλίδια Γυναικεία Broken Hill in New South Wales, Australia; from the Mammoth District of Δαχτυλιδια ΜοντεÏνα Arizona in the United States; and inside the Mendip Hills of Somerset, England.
