Boleite was 1st identified in Boleo, Mexico in 1891, within a region of the Baja peninsula that has become famous for exceptional minerals. Boleite is these an abnormal and complex mineral which the definition of its chemical composition and crystal framework have gone through a number of revisions since its to start with discovery.
The primary specimens of boleite had been discovered by Eduoard Cumenge, a French mining engineer. A further 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 many options of boleite which make it of specific fascination to collectors. For something, it's got an abnormal chemical composition, being a hydrated guide copper silver chloride hydroxide. It includes significant portions of these metals, with about forty nine% guide, fourteen% copper and 9% silver. Next, it has an interesting crystal framework, considering that boleite Δαχτυλιδια bulgari is always pseudocubically twinned. That is definitely, Every single cube-like crystal of boleite is definitely composed of a few rectangular box-like crystals oriented at suitable Δαχτυλιδια Μονοπετρα angles to each other. Boleite also has a very beautiful indigo colour plus some really rare clear crystals have been Slice as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, including fluorite, boleite is sort of delicate, which has a Mohs hardness score of only three to 3.five. It has a vitreous to pearly luster. It is actually an unusually dense mineral, with a particular gravity of five.05. Only a few minerals, for example hematite and cassiterite, have a higher density. Boleite's refractive index can be very significant at Χρυσά & Λευκόχρυσα Δαχτυλίδια 2.03-2.05; better than sapphire, sphene and demantoid garnet.
As well as 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 long been found in Broken Hill in New Χρυσά Δαχτυλίδια South Wales, Australia; from the Mammoth District of Arizona in the United States; Δαχτυλίδια and while in the Mendip Hills of Somerset, England.