Boleite was to start with found out in Boleo, Mexico in 1891, inside of a location on the Baja peninsula that is becoming recognized for uncommon minerals. Boleite is this kind of an unusual and sophisticated mineral the definition of its chemical composition and crystal construction have undergone quite a few revisions considering the fact that its 1st discovery.
The main specimens of boleite have been 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 functions of boleite that make it of unique curiosity to collectors. For another thing, it's an uncommon chemical composition, staying a hydrated direct copper silver chloride hydroxide. It contains major quantities of such metals, with about 49% guide, 14% copper and nine% silver. Secondly, it's got a fascinating crystal construction, considering that boleite is Δαχτυλιδια ΜονοπετÏα often pseudocubically twinned. Which is, each dice-like crystal of boleite is actually made up of three rectangular box-like crystals ΛευκόχÏυσα oriented at suitable angles to each other. Boleite also has an exceptionally desirable indigo coloration and several very ΧειÏοποίητα Δαχτυλίδια exceptional transparent crystals are Reduce as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, which include fluorite, boleite is fairly gentle, that has a Mohs hardness rating of only three to 3.five. It's got a vitreous to pearly luster. It really is an ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια unusually dense mineral, with a selected gravity of 5.05. Only some minerals, like hematite and cassiterite, have an increased density. Boleite's refractive index is additionally pretty large at two.03-2.05; increased than sapphire, sphene and demantoid garnet.
In addition to cumengite, There are a variety of other minerals associated with boleite, like pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
In addition to the deposit in Baja, Mexico, boleite has become found in Broken Hill in New South Wales, Australia; while in Δαχτυλιδια Φθηνα the Mammoth District of Arizona in America; and inside the Mendip Hills of Somerset, England.
