Boleite was initially learned in Boleo, Mexico in 1891, in a very area on the Baja peninsula that is becoming recognized for uncommon minerals. Boleite is such an unconventional and complicated mineral the definition of its chemical composition and crystal structure have been through various revisions due to the fact its very first discovery.
The initial specimens of boleite were found out by Eduoard Cumenge, a French mining engineer. A different unusual halide mineral in the same site, with an analogous construction and a slightly distinctive chemical composition, was named cumengite in honor of Cumenge.
There are plenty of characteristics of boleite that make it of individual fascination to collectors. For one thing, it's got 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. Next, it has a captivating crystal construction, considering the fact that boleite is Δαχτυλιδια ΜοντεÏνα usually pseudocubically twinned. That's, Each individual cube-like crystal of boleite is definitely made up of three rectangular box-like crystals Δαχτυλιδια ΜοντεÏνα oriented at suitable angles to each other. Boleite also has an exceedingly Δαχτυλιδια bulgari eye-catching indigo color and many very exceptional transparent crystals are Reduce as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide Δαχτυλιδια skroutz minerals, which include fluorite, boleite is fairly soft, by using a Mohs hardness ranking of only 3 to three.5. It's 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 can be very substantial at two.03-2.05; better than sapphire, sphene and demantoid garnet.
Along with cumengite, There are a variety of Δαχτυλιδια ΜονοπετÏα other minerals associated with boleite, including pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Besides the deposit in Baja, Mexico, boleite continues to be present in Damaged Hill in New South Wales, Australia; in the Mammoth District of Arizona in The us; and from the Mendip Hills of Somerset, England.
