Boleite was 1st identified in Boleo, Mexico in 1891, within a region of the Baja peninsula that has become well known for scarce minerals. Boleite is these types of an unconventional and complicated mineral the definition of its chemical composition and crystal structure have been through numerous revisions considering that its very first discovery.
The very first specimens of boleite were found out by Eduoard Cumenge, a French mining engineer. A different unusual halide mineral from your identical site, with the same structure and a rather distinct chemical composition, was named cumengite in honor of Cumenge.
There are numerous attributes 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 major quantities of such metals, with about 49% lead, fourteen% copper and 9% silver. Next, it has a captivating crystal framework, considering that boleite is always pseudocubically twinned. That may be, Just about every cube-like crystal of boleite is definitely composed of a few rectangular box-like crystals oriented at proper angles to one Δαχτυλιδια swarovski another. Boleite also has an incredibly appealing indigo coloration and several very exceptional transparent crystals are Lower as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, such as fluorite, boleite is Δαχτυλίδια Γυναικεία kind of gentle, that has a Mohs hardness rating of only three to 3.five. It has a vitreous to Δαχτυλιδια ΜοντεÏνα pearly luster. It truly is an unusually dense mineral, with a specific gravity Δαχτυλιδια Φθηνα of 5.05. Only some minerals, including hematite and cassiterite, have the next density. Boleite's refractive index can also be incredibly higher at two.03-two.05; increased than sapphire, sphene and demantoid garnet.
In addition to cumengite, There are a variety of other minerals associated with boleite, like pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, Δαχτυλιδια skroutz atacamite, mendipite and diaboleite.
In addition to the deposit in Baja, Mexico, boleite has become located in Broken Hill in New South Wales, Australia; while in the Mammoth District of Arizona in the United States; and inside the Mendip Hills of Somerset, England.
