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 the definition of its chemical composition and crystal composition have undergone quite a few 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 exceptional 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 functions of boleite which make it of distinct interest to collectors. For another thing, it has an unconventional chemical composition, staying a hydrated lead copper silver chloride hydroxide. It contains important quantities of such metals, with about 49% guide, 14% copper and nine% ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια silver. Secondly, it's got an interesting crystal structure, due to the fact boleite is always pseudocubically twinned. That may be, Every single cube-like crystal of boleite is in fact composed of 3 rectangular box-like crystals oriented at correct angles to one another. Boleite also has a really interesting indigo colour plus some really rare transparent Δαχτυλιδια swarovski crystals have been 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 5.05. Just a few minerals, such as hematite and cassiterite, have a better density. Boleite's refractive index is also quite high at 2.03-two.05; greater than sapphire, sphene and demantoid garnet.
Besides cumengite, there are a ΧÏυσά Δαχτυλίδια number of other minerals linked to boleite, including pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Together with the deposit in Baja, Mexico, boleite ΛευκόχÏυσα has been found in Broken Hill in New South Wales, Australia; during the Mammoth District of Arizona in the ΑσημÎνια Δαχτυλίδια United States; and while in the Mendip Hills of Somerset, England.
