Boleite was to start with discovered in Boleo, Mexico in 1891, in a location with the Baja peninsula that has grown to be popular for unusual minerals. Boleite is this sort of an uncommon and sophisticated mineral which the definition of its chemical composition and crystal construction have undergone several revisions considering the fact that its initially discovery.
The 1st specimens of boleite have been found by Eduoard Cumenge, a French mining engineer. Another scarce halide mineral with the identical place, with an analogous framework and a slightly different chemical composition, was named cumengite in honor of Cumenge.
There are plenty of capabilities of boleite that make it of particular fascination to collectors. For one thing, it's got an abnormal chemical composition, being a hydrated guide copper silver chloride hydroxide. It includes significant portions of these metals, with about forty nine% lead, fourteen% copper and 9% silver. Next, it has a captivating crystal construction, considering the fact that boleite is usually pseudocubically twinned. That's, each dice-like crystal of boleite is actually made up of three rectangular box-like crystals oriented at suitable angles to each other. Boleite ΧÏυσά Δαχτυλίδια also has an exceptionally desirable indigo coloration and several very exceptional transparent crystals are Reduce as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, which include fluorite, boleite is fairly tender, using ΛευκόχÏυσα 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 ΑσημÎνια Δαχτυλίδια gravity of five.05. Only a few minerals, for instance hematite and cassiterite, Δαχτυλίδια have a higher density. Boleite's refractive index can be very substantial at two.03-2.05; bigger than sapphire, sphene and demantoid garnet.
As well as cumengite, There are a selection of other minerals related to boleite, which include pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Along with the deposit in Baja, Mexico, boleite has become located in Broken Hill in New South Wales, Australia; while in the Mammoth District of Arizona in America; and inside the Δαχτυλιδια bulgari Mendip Hills of Somerset, England.
