Boleite was to start with uncovered in Boleo, Mexico in 1891, in the region 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 gone through a number of revisions because its to start with discovery.
The main specimens of boleite have been found by Eduoard Cumenge, a French mining engineer. Another scarce halide mineral through the exact same location, with the same structure and a rather distinct chemical composition, was named cumengite in honor of Cumenge.
There are many features of boleite which make it of specific desire to collectors. For something, it's got an abnormal chemical composition, being a hydrated guide copper silver chloride hydroxide. It incorporates major quantities of such metals, with about 49% guide, 14% copper and 9% silver. Secondly, it's got an interesting crystal structure, due to the fact boleite is usually pseudocubically twinned. That Δαχτυλιδια skroutz is, Just about every cube-like crystal of boleite is definitely composed of 3 rectangular box-like crystals oriented at correct Δαχτυλιδια ΜονοπετÏα angles to one another. Boleite also has an extremely attractive indigo shade and some quite rare clear crystals happen ΛευκόχÏυσα to be Slice as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, including ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια fluorite, boleite is sort of delicate, which has a Mohs hardness score of only three to 3.five. It's got a vitreous to pearly luster. It really is an unusually dense mineral, with a selected gravity of 5.05. Just a few minerals, such as hematite and cassiterite, have a better density. Boleite's refractive index is also quite high at 2.03-two.05; greater than sapphire, sphene and demantoid garnet.
Besides cumengite, there are a number of other minerals linked to boleite, including pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Together with the deposit in Baja, Mexico, Δαχτυλιδια swarovski boleite has long been found in Broken 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.
