Boleite was initially identified in Boleo, Mexico in 1891, within a region of the Baja peninsula that has become famous for scarce minerals. Boleite is these an strange and complicated mineral that the definition of its chemical composition and crystal framework have gone through a number of revisions because its first discovery.
The main specimens of boleite have been identified by Eduoard Cumenge, a French mining engineer. One more exceptional halide mineral from your exact same location, with the same structure and a rather diverse chemical composition, was named cumengite in honor of Cumenge.
There are lots of attributes of boleite which make it of certain desire to collectors. For something, it has an unconventional chemical composition, currently being a hydrated lead copper silver chloride hydroxide. It incorporates important quantities of such metals, with about 49% guide, 14% copper and nine% silver. Secondly, it's got a fascinating crystal structure, since boleite is usually pseudocubically twinned. That's, each cube-like Δαχτυλιδια Γυναικεια crystal of boleite is actually composed Δαχτυλιδια Φθηνα of a few rectangular box-like crystals oriented at appropriate angles to each ΑσημÎνια Δαχτυλίδια other. Boleite also has an incredibly appealing indigo coloration and a few pretty unusual clear crystals are already Reduce as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, for instance fluorite, boleite is very tender, using a Mohs hardness ranking of only 3 to three.5. It's a vitreous to pearly luster. It is actually an unusually dense mineral, with a particular ΧÏυσά gravity of five.05. Only some minerals, for example hematite and cassiterite, have a higher density. Boleite's refractive index can be very substantial at two.03-2.05; better than sapphire, sphene and demantoid garnet.
Along with cumengite, There are a variety 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 of Δαχτυλιδια ΜονοπετÏα Arizona in America; and within the Mendip Hills of Somerset, England.
