Boleite was 1st uncovered in Boleo, Mexico in 1891, within a region of the Baja peninsula that has become famous for exceptional minerals. Boleite is these an abnormal and complex mineral which 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 fascination to collectors. For one thing, it's got an uncommon chemical composition, remaining a hydrated direct copper silver chloride hydroxide. It consists of significant portions of these metals, with about forty nine% lead, fourteen% copper and 9% silver. Next, it has a captivating crystal construction, since boleite ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια is usually pseudocubically twinned. That's, each dice-like crystal of boleite is actually made up of a few rectangular box-like crystals oriented at appropriate angles to each other. Boleite also has an exceptionally appealing indigo coloration and a few pretty unusual transparent crystals are already cut as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, for instance Δαχτυλιδια ΜονοπετÏα fluorite, boleite is very tender, using a Mohs hardness ranking of only 3 to three.5. It's a vitreous to pearly luster. It is actually Δαχτυλιδια Γυναικεια an unusually dense mineral, with a particular gravity of five.05. Only a few Δαχτυλιδια Φθηνα minerals, for example hematite and cassiterite, ΑσημÎνια Δαχτυλίδια 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 other minerals associated with boleite, like pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
In addition to the deposit in Baja, Mexico, boleite is located in Broken Hill in New South Wales, Australia; inside the Mammoth District of Arizona in The usa; and in the Mendip Hills of Somerset, England.
