Boleite was initial found in Boleo, Mexico in 1891, inside a location with the Baja peninsula that has grown to be popular for uncommon minerals. Boleite is this kind of an unusual and sophisticated mineral which the definition of its chemical composition and crystal construction have undergone several revisions considering the fact that its to start with discovery.
The 1st specimens of boleite ended up uncovered by Eduoard Cumenge, a French mining engineer. A different exceptional halide mineral from your exact same location, with the same construction and a rather diverse 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, being a hydrated direct 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. Which is, Every dice-like crystal of boleite is really made up of 3 rectangular box-like crystals oriented at right angles to one another. Boleite also has Δαχτυλιδια skroutz an exceedingly beautiful indigo colour plus some really rare transparent crystals have been Slice as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, including fluorite, boleite is sort of comfortable, with a Mohs hardness score of only three Δαχτυλιδια ΜονοπετÏα to 3.five. It has a vitreous to pearly luster. It truly is an unusually dense mineral, with a specific gravity of 5.05. Only some minerals, including hematite and cassiterite, have the next density. Boleite's refractive index can also ΛευκόχÏυσα be incredibly higher at two.03-2.05; increased than sapphire, sphene and demantoid garnet.
In addition to cumengite, There are a variety ΧειÏοποίητα Δαχτυλίδια of other minerals affiliated with boleite, which includes pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
In combination with the deposit in Baja, Mexico, boleite is located in Damaged ΧÏυσά Hill in New South Wales, Australia; inside the Mammoth District of Arizona in The us; and during the Mendip Hills of Somerset, England.
