Boleite was initial discovered in Boleo, Mexico in 1891, in a location with the Baja peninsula that is becoming recognized for uncommon minerals. Boleite is such an unconventional and complex mineral that the definition of its chemical composition and crystal framework have gone through a number of revisions since its to start with discovery.
The 1st specimens of boleite have been identified by Eduoard Cumenge, a French mining engineer. Another scarce halide mineral with the identical location, with an analogous construction and a slightly unique chemical composition, was named cumengite in honor of Cumenge.
There are various 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 these metals, with about forty nine% direct, fourteen% copper and 9% silver. Next, it has a captivating crystal construction, since boleite is often pseudocubically twinned. Which Δαχτυλιδια skroutz is, Each individual cube-like crystal of boleite is definitely composed of a few rectangular box-like crystals oriented at proper angles to one another. Boleite also has an incredibly attractive indigo shade and a few incredibly uncommon clear crystals happen to be Slice as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, including fluorite, boleite is sort of delicate, which has a Mohs hardness rating of only three to 3.five. It's got a vitreous to pearly Δαχτυλιδια bulgari luster. It can be an unusually dense mineral, with a specific gravity of five.05. Only some minerals, including hematite Δαχτυλιδια Γυναικεια and cassiterite, have the next density. Boleite's refractive index can also be incredibly higher at two.03-two.05; larger than sapphire, Δαχτυλιδια skroutz sphene and demantoid garnet.
In combination with cumengite, there are a number of ΧÏυσά Δαχτυλίδια 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 New South Wales, Australia; from the Mammoth District of Arizona in the United States; and while in the Mendip Hills of Somerset, England.
