Boleite was initially uncovered in Boleo, Mexico in 1891, in the area from the Baja peninsula that happens to be famous for exceptional minerals. Boleite is these an abnormal and complex mineral which the definition of its chemical composition and crystal framework have undergone several 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 the same construction and a rather diverse chemical composition, was named cumengite in honor of Cumenge.
There are lots of functions of boleite which make it of unique curiosity to collectors. For another thing, it has an uncommon chemical composition, remaining a hydrated direct copper silver chloride hydroxide. It consists of sizeable quantities of these metals, with about forty nine% lead, fourteen% copper and 9% silver. Next, it has a captivating crystal construction, since boleite is often pseudocubically twinned. Which is, each dice-like crystal of boleite is actually made up of a few rectangular box-like Δαχτυλιδια Φθηνα crystals oriented at appropriate angles to each other. Boleite also has an exceedingly eye-catching indigo color and many extremely exceptional transparent crystals are actually cut as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, for example fluorite, boleite is quite smooth, 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 Δαχτυλιδια bulgari minerals, for example hematite and cassiterite, have a higher density. Boleite's refractive index is likewise extremely substantial at 2.03-2.05; bigger than sapphire, sphene and demantoid Δαχτυλιδια bulgari garnet.
Besides cumengite, there are a number Λευκόχρυσα of other minerals linked to boleite, including pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Together with the deposit in Baja, Mexico, boleite has Χρυσά & Λευκόχρυσα Δαχτυλίδια been found in Damaged Hill in New South Wales, Australia; during the Mammoth District of Arizona in the United States; and while in the Mendip Hills of Somerset, England.