Boleite was initial found in Boleo, Mexico in 1891, inside a location with the Baja peninsula that is becoming recognized for uncommon minerals. Boleite is this kind of an unusual and sophisticated mineral the definition of its chemical composition and crystal construction have undergone quite a few revisions considering the fact that its initially discovery.
The primary specimens of boleite had been identified by Eduoard Cumenge, a French mining engineer. Yet another rare halide mineral within the similar spot, with an identical composition and a rather various chemical composition, was named cumengite in honor of Cumenge.
There are many features of boleite which make it of certain desire to collectors. For something, it has an strange chemical composition, currently being a hydrated lead copper silver chloride hydroxide. It incorporates important quantities of such metals, with about 49% guide, 14% copper and nine% silver. Secondly, it's got ΛευκόχÏυσα a fascinating crystal composition, due to the fact boleite is usually pseudocubically twinned. Which is, each dice-like crystal of boleite is actually made up of three rectangular box-like crystals oriented at suitable angles to each other. Boleite Δαχτυλιδια ΜονοπετÏα also has an exceptionally desirable indigo coloration and several very exceptional transparent crystals are already Reduce as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, ΛευκόχÏυσα for instance fluorite, boleite is very tender, using a Mohs hardness ranking of ΧÏυσά Δαχτυλίδια 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 minerals, for example hematite Δαχτυλίδια Γυναικεία and cassiterite, have a higher density. Boleite's refractive index can be very substantial at 2.03-2.05; higher than sapphire, sphene and demantoid garnet.
Together with cumengite, There are a selection of other minerals linked to boleite, including pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
As well as the deposit in Baja, Mexico, boleite has long 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.
