Boleite was initially uncovered in Boleo, Mexico in 1891, in the area in the Baja peninsula that is now well-known for rare minerals. Boleite is these types of an unconventional and complicated mineral that the definition of its chemical composition and crystal composition have been through numerous 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 the same construction and a rather diverse chemical composition, was named cumengite in honor of Cumenge.
There are lots of attributes of boleite which 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 such metals, with about forty nine% lead, fourteen% copper and 9% ΛευκόχÏυσα silver. Next, it has an interesting crystal structure, considering the fact that boleite is usually pseudocubically twinned. That is, ΑσημÎνια Δαχτυλίδια Just about every cube-like crystal of boleite is definitely composed of 3 rectangular box-like crystals oriented at correct Δαχτυλίδια angles to one another. Boleite also has an extremely interesting indigo colour and some quite rare transparent crystals are actually Minimize as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, such as 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 particular gravity of five.05. Only a Δαχτυλίδια Γυναικεία few minerals, for instance hematite and cassiterite, have a higher density. Boleite's refractive index can be very substantial at two.03-2.05; better than sapphire, sphene and demantoid garnet.
Along with cumengite, There are a variety of other minerals associated with boleite, like pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
In combination with the deposit in Baja, Mexico, boleite is located in Damaged Hill in New South Wales, Australia; ΧειÏοποίητα Δαχτυλίδια within the Mammoth District of Arizona in The usa; and in the Mendip Hills of Somerset, England.
