Boleite was initial found in Boleo, Mexico in 1891, inside a region of the Baja peninsula that happens to be famous for exceptional minerals. Boleite is these kinds of 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 main specimens of boleite ended up identified by Eduoard Cumenge, a French mining engineer. Another scarce halide mineral with the identical location, with an analogous construction and a slightly unique 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, remaining a hydrated direct copper silver chloride hydroxide. It consists of sizeable quantities of these metals, with about 49% lead, fourteen% copper and nine% silver. Secondly, it's got an interesting crystal structure, due to the fact boleite is usually pseudocubically twinned. That is, Just about every cube-like crystal of boleite is definitely composed of 3 rectangular box-like crystals oriented at correct angles to one another. Boleite also has an extremely ΧειÏοποίητα Δαχτυλίδια attractive indigo shade and some quite rare clear crystals happen to be Slice as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, including 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, like hematite and cassiterite, have an increased density. Boleite's refractive index can also be incredibly higher at two.03-two.05; Δαχτυλιδια ΜονοπετÏα larger than sapphire, sphene and demantoid garnet.
In combination with cumengite, There are a variety of other minerals connected to boleite, such as pseudoboleite, chloroxiphite, paralaurionite, Δαχτυλιδια ΜοντεÏνα matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Besides the deposit in Baja, Mexico, Δαχτυλιδια bulgari boleite continues to be present in Damaged Hill in New South Wales, Australia; Δαχτυλιδια skroutz in the Mammoth District of Arizona in The us; and during the Mendip Hills of Somerset, England.
