Boleite was 1st uncovered in Boleo, Mexico in 1891, in the area in the Baja peninsula that is now well-known for rare minerals. Boleite is this kind of an unconventional and sophisticated mineral the definition of its chemical composition and crystal structure have been through various revisions due to the fact its 1st discovery.
The initial specimens of boleite were found out by Eduoard Cumenge, a French mining engineer. A different 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 something, it has an unconventional chemical composition, currently being a hydrated lead copper silver chloride hydroxide. It incorporates important quantities of those metals, with about 49% ΧειÏοποίητα Δαχτυλίδια direct, 14% copper and nine% silver. Secondly, it's a fascinating crystal composition, since boleite is always pseudocubically twinned. That may be, Just about every Δαχτυλιδια swarovski cube-like crystal of boleite is definitely composed of 3 rectangular box-like crystals oriented at correct angles to one Δαχτυλιδια swarovski another. Boleite also has an extremely attractive indigo shade and some quite rare clear crystals have been Slice as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, like fluorite, boleite is sort of delicate, that has a Mohs hardness rating of only 3 to 3.five. It has a vitreous to pearly luster. It can be an unusually dense mineral, with a certain gravity of five.05. Only some minerals, including hematite and cassiterite, have a higher density. Boleite's refractive index is likewise extremely substantial at 2.03-2.05; bigger than sapphire, sphene and demantoid garnet.
Besides cumengite, there are a number of other ΧÏυσά Δαχτυλίδια minerals associated with boleite, which include pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Along with the deposit in Baja, Mexico, boleite has become ΧÏυσά located in Broken Hill in New South Wales, Australia; from the Mammoth District of Arizona in The us; and from the Mendip Hills of Somerset, England.
