Boleite was to start with found out in Boleo, Mexico in 1891, in a very area on the Baja peninsula that is becoming recognized for uncommon minerals. Boleite is such an unusual and sophisticated mineral the definition of its chemical composition and crystal structure have been through various revisions considering the fact that its initially discovery.
The primary specimens of boleite had been discovered by Eduoard Cumenge, a French mining engineer. A further unusual halide mineral from your exact same locale, 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 distinct interest to collectors. For another thing, it has an unconventional chemical composition, being a hydrated lead copper silver chloride hydroxide. It incorporates major quantities of such metals, with about 49% guide, 14% copper and nine% silver. Secondly, it's got Δαχτυλιδια Γυναικεια an interesting crystal composition, due to the fact boleite is always pseudocubically twinned. Δαχτυλιδια Φθηνα That is, Just about every cube-like Ασημένια Δαχτυλίδια crystal of boleite is in fact composed of 3 rectangular box-like crystals oriented at right angles to one another. Boleite also has a really beautiful indigo colour plus some really scarce 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 few minerals, for instance hematite Ασημένια Δαχτυλίδια and cassiterite, have a greater density. Boleite's refractive index is likewise extremely significant at 2.03-2.05; bigger than sapphire, sphene and demantoid garnet.
As well as cumengite, There 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 in Broken Hill in New South Wales, Australia; while in the Mammoth District Δαχτυλιδια Μονοπετρα of Arizona in America; and within the Mendip Hills of Somerset, England.