Boleite was initially uncovered in Boleo, Mexico in 1891, in the area in the Baja peninsula that is now well-known 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 very first discovery.
The initial specimens of boleite were found out by Eduoard Cumenge, a French mining engineer. Another uncommon halide mineral within the similar spot, with an identical composition and a rather various chemical composition, was named cumengite in honor of Cumenge.
There are many options of boleite which make it of specific desire to collectors. For something, it's got an abnormal chemical composition, becoming a hydrated guide copper silver chloride hydroxide. It includes significant portions of these metals, with about forty nine% ΧÏυσά lead, fourteen% copper and 9% silver. Next, it has a captivating crystal ΧειÏοποίητα Δαχτυλίδια construction, since boleite is usually pseudocubically twinned. That's, Every dice-like crystal of boleite is actually made up of three Δαχτυλιδια ΜοντεÏνα rectangular box-like crystals oriented at suitable angles to each other. Boleite also has an exceptionally desirable indigo coloration and several very unusual clear crystals are already cut as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, for instance fluorite, boleite is very smooth, having a Mohs hardness score of only 3 to 3.five. It has a vitreous to pearly luster. It can be an unusually dense ΧÏυσά Δαχτυλίδια mineral, with a specific gravity of five.05. Only some minerals, including hematite and cassiterite, have the next density. Boleite's refractive index is additionally pretty large at two.03-2.05; larger than sapphire, sphene and demantoid garnet.
Together with cumengite, There are a selection of other minerals connected with boleite, together with pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
As well as the deposit in Baja, Mexico, boleite has actually ΛευκόχÏυσα been found 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.
