Boleite was initial found out in Boleo, Mexico in 1891, inside of a location on the Baja peninsula that is now well-known for rare minerals. Boleite is such an unconventional and complicated mineral that the definition of its chemical composition and crystal composition have gone through numerous revisions because its first discovery.
The main specimens of boleite have been identified by Eduoard Cumenge, a French mining engineer. Another scarce halide mineral with the identical place, with an analogous framework 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 unusual 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 framework, given Δαχτυλιδια Φθηνα that boleite is often pseudocubically twinned. That is certainly, each dice-like crystal of boleite is actually made up of a few rectangular box-like crystals oriented at appropriate angles to each other. Boleite also has an incredibly appealing indigo shade and a few pretty unusual clear crystals have already been Slash as gemstones.
Boleite in MatrixBoleite in Δαχτυλίδια Matrix
Like other halide minerals, for example fluorite, boleite is quite comfortable, with 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 usually really superior at 2.03-two.05; bigger than sapphire, sphene and demantoid garnet.
As well as cumengite, There ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια are a selection of other minerals related to boleite, which include pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Along with the deposit in Baja, Mexico, boleite has become located ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια in Broken Hill in New South Wales, Australia; inside the Mammoth District of Arizona in America; and in Δαχτυλιδια ΜοντεÏνα the Mendip Hills of Somerset, England.
