Boleite was initially identified in Boleo, Mexico in 1891, within a region from 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 because its first discovery.
The main specimens of boleite have been identified by Eduoard Cumenge, a French mining engineer. An additional scarce halide mineral with the very same place, with a similar framework and a slightly different chemical composition, was named cumengite in honor of Cumenge.
There are several options of boleite which make it of specific fascination to collectors. For one thing, 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% lead, fourteen% copper and 9% silver. Next, it has Δαχτυλιδια Γυναικεια a captivating crystal framework, given that boleite is often pseudocubically twinned. That is certainly, Each and every dice-like crystal of boleite is really made up of three rectangular box-like crystals oriented at ideal angles to each other. Boleite also has a very beautiful indigo color and several extremely exceptional transparent crystals are actually Lower as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide Δαχτυλιδια Φθηνα minerals, which include fluorite, boleite is fairly soft, by using a Mohs hardness rating of only 3 to three.5. It's a vitreous to pearly luster. It is an unusually dense mineral, with a certain gravity of five.05. Only a few minerals, for instance hematite and cassiterite, have a greater density. Boleite's refractive index is likewise extremely significant at 2.03-two.05; higher than sapphire, sphene ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια and demantoid garnet.
Together with cumengite, There are a selection of other minerals linked to boleite, including pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Together with the deposit in Baja, ΧÏυσά Δαχτυλίδια Mexico, boleite has been found in Broken Hill in New South Wales, Australia; during the Mammoth District of Δαχτυλίδια Arizona in the United States; and while in the Mendip Hills of Somerset, England.
