Boleite was very first identified in Boleo, Mexico in 1891, within a region of the Baja peninsula that happens to be famous for exceptional minerals. Boleite is these an abnormal and complex mineral which the definition of its chemical composition and crystal framework have undergone several revisions since its to start with discovery.
The 1st specimens of boleite ended up identified by Eduoard Cumenge, a French mining engineer. Another scarce halide mineral with the identical location, with an analogous construction and a slightly distinctive chemical composition, was named cumengite in honor of Cumenge.
There are plenty of characteristics of boleite that make it of particular fascination to collectors. For one thing, it's got an abnormal chemical composition, being a hydrated direct copper silver chloride hydroxide. It consists of significant portions of these metals, with about forty nine% lead, fourteen% copper and 9% Δαχτυλιδια Φθηνα silver. Next, it has an interesting crystal structure, considering the fact that boleite is usually pseudocubically twinned. That is, Just about every cube-like crystal of boleite is definitely composed of 3 rectangular box-like crystals oriented at correct angles to one another. Boleite also has an extremely attractive indigo shade ΛευκόχÏυσα and some quite rare clear crystals happen to be 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 three to 3.5. It's got a vitreous to pearly luster. It's an unusually dense mineral, with a certain gravity of 5.05. Just a few minerals, which include hematite and cassiterite, have a greater density. Boleite's refractive index is usually really superior at 2.03-2.05; bigger than sapphire, sphene and Δαχτυλιδια Γυναικεια demantoid garnet.
As well as cumengite, There are a selection of other minerals related to boleite, which include pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Along with the deposit in Δαχτυλίδια Γυναικεία Baja, Mexico, boleite has become located in Broken Hill in New South Wales, Australia; while in the Mammoth District Δαχτυλιδια ΜοντεÏνα of Arizona in America; and within the Mendip Hills of Somerset, England.
