Boleite was first learned in Boleo, Mexico in 1891, in the area in the Baja peninsula that is now well-known for rare minerals. Boleite is such an unconventional and sophisticated mineral the definition of its chemical composition and crystal structure have been through various revisions due to the fact its 1st discovery.
The initial specimens of boleite had been found out by Eduoard Cumenge, a French mining engineer. A different unusual halide mineral from your same locale, with the same structure and a rather distinct chemical composition, was named cumengite in honor of Cumenge.
There are various 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 substantial portions of those metals, with about forty nine% direct, fourteen% Δαχτυλιδια bulgari copper and 9% silver. Next, it's a captivating crystal framework, because boleite ΛευκόχÏυσα is often pseudocubically twinned. Which is, Each individual cube-like crystal of boleite is actually composed of three rectangular box-like crystals oriented at right angles to one another. Boleite also has a really beautiful indigo colour plus some really scarce transparent crystals have been Minimize as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, such as fluorite, boleite is kind of Δαχτυλιδια Φθηνα gentle, that has a Mohs hardness rating of only three to three.5. It's a vitreous to pearly luster. It's an unusually dense mineral, with a selected gravity of 5.05. Only some minerals, including hematite and cassiterite, have a greater density. Boleite's refractive index is also quite high at 2.03-two.05; greater than sapphire, sphene and demantoid garnet.
Besides cumengite, there are a number of other minerals connected to boleite, including pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Together with the Δαχτυλιδια ΜοντεÏνα deposit in Baja, Mexico, boleite has been found in Broken Hill in New South Wales, Australia; during the Mammoth District of Arizona in the Δαχτυλιδια swarovski United States; and while in the Mendip Hills of Somerset, England.
