Boleite was very first discovered in Boleo, Mexico in 1891, in a area on the Baja peninsula that is becoming recognized for uncommon minerals. Boleite is such 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 same locale, with the same structure and a rather distinct chemical composition, was named cumengite in honor of Cumenge.
There are numerous features 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 contains major quantities of such metals, with about 49% guide, 14% copper and nine% silver. Secondly, it's got an interesting crystal structure, Δαχτυλίδια due to the fact boleite is usually pseudocubically twinned. That is, Just about every 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 Δαχτυλιδια bulgari an extremely attractive indigo shade and some incredibly uncommon clear crystals are Lower 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 got a vitreous to pearly luster. It's an unusually dense mineral, with a selected gravity of 5.05. Just a few minerals, such as hematite and cassiterite, have a better density. Boleite's refractive index is also really high at 2.03-two.05; greater than sapphire, sphene and demantoid garnet.
Besides cumengite, there are a number of other minerals linked to boleite, including ΧÏυσά Δαχτυλίδια pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Together with the deposit in Baja, Mexico, boleite has long Δαχτυλιδια Φθηνα been found in Broken Hill in New South Wales, Australia; during the ΧÏυσά Mammoth District of Arizona in the United States; and while in the Mendip Hills of Somerset, England.
