Boleite was first found in Boleo, Mexico in 1891, inside a location with the Baja peninsula that has grown 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 gone through a number of revisions because its first discovery.
The first specimens of boleite ended up uncovered by Eduoard Cumenge, a French mining engineer. Yet another rare halide mineral within the similar area, with a similar composition and a slightly 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 unconventional chemical composition, staying a hydrated direct copper silver chloride hydroxide. It contains major quantities of such metals, with about 49% lead, fourteen% copper and 9% silver. Next, it has a captivating crystal construction, since boleite is usually pseudocubically twinned. That's, Each individual cube-like crystal of boleite is actually composed of a few rectangular box-like crystals oriented at appropriate Δαχτυλιδια Μονοπετρα angles to each other. Boleite also has an exceptionally appealing indigo coloration and a few pretty unusual clear crystals are already cut as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, which include fluorite, boleite is fairly soft, by using a Mohs hardness rating of only 3 to three.5. It's a vitreous to pearly luster. It is an unusually dense mineral, with a certain gravity of 5.05. Just a few minerals, which include hematite and cassiterite, have a greater density. Boleite's refractive index is usually really superior at 2.03-two.05; higher than sapphire, sphene Δαχτυλίδια Γυναικεία and demantoid garnet.
Together with cumengite, there are a number of other minerals linked to boleite, including pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and Δαχτυλίδια diaboleite.
Together with the deposit in Baja, Mexico, boleite has long been found in Broken Hill in New South Wales, Australia; during the Mammoth District of Δαχτυλιδια Μοντερνα Arizona in the United States; and while in the Mendip Hills of Δαχτυλιδια Φθηνα Somerset, England.