Boleite was 1st identified in Boleo, Mexico in 1891, inside a region of the Baja peninsula that happens to be renowned for unusual minerals. Boleite is this sort of an uncommon and sophisticated mineral which the definition of its chemical composition and crystal construction have undergone quite a few revisions due to the fact its 1st discovery.
The primary specimens of boleite had been found out by Eduoard Cumenge, a French mining engineer. A different unusual halide mineral in the same site, with the same structure and a rather distinct chemical composition, was named cumengite in honor of Cumenge.
There are many options of boleite which make it of specific fascination 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 49% Δαχτυλιδια bulgari lead, fourteen% copper and 9% silver. Next, it has an interesting crystal structure, considering the fact that boleite is usually pseudocubically twinned. That's, Each individual Δαχτυλιδια bulgari cube-like crystal of boleite is definitely composed of a few rectangular box-like crystals Δαχτυλιδια skroutz oriented at proper angles to one another. Boleite also has an extremely attractive indigo shade and some incredibly uncommon ΧειÏοποίητα Δαχτυλίδια 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 ΑσημÎνια Δαχτυλίδια a better density. Boleite's refractive index is usually extremely superior at 2.03-2.05; bigger than sapphire, sphene and 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 Baja, Mexico, boleite has become located in Broken Hill in New South Wales, Australia; inside the Mammoth District of Arizona in America; and within the Mendip Hills of Somerset, England.
