Boleite was initially identified in Boleo, Mexico in 1891, inside a region of your Baja peninsula that happens to be popular for unusual minerals. Boleite is this sort of an uncommon and sophisticated mineral the definition of its chemical composition and crystal construction have undergone various revisions because its to start with discovery.
The main specimens of boleite have been found 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 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 49% lead, fourteen% copper and 9% silver. Next, it has a captivating crystal structure, since boleite is usually pseudocubically twinned. That's, Each individual cube-like crystal of boleite is actually composed of a few rectangular box-like crystals oriented at proper angles to one another. Boleite also has an incredibly appealing indigo coloration ΧÏυσά Δαχτυλίδια and a few pretty unusual clear crystals have already been cut 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. ΑσημÎνια Δαχτυλίδια It has a vitreous to pearly luster. It truly is an unusually dense mineral, with a specific gravity of ΧειÏοποίητα Δαχτυλίδια 5.05. Only some minerals, like hematite and cassiterite, have a higher density. Boleite's refractive index is likewise really Δαχτυλιδια swarovski superior at 2.03-two.05; bigger than sapphire, sphene and demantoid garnet.
Together with cumengite, There are a selection of other minerals connected with boleite, together with pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Together with the deposit in Baja, Mexico, boleite continues to be present in Damaged Hill in New South Wales, Australia; within the Δαχτυλίδια Mammoth District of Arizona in The usa; and in the Mendip Hills of Somerset, England.
