Boleite was initial found out in Boleo, Mexico in 1891, inside of a area on the Baja peninsula that is becoming recognized for rare minerals. Boleite is such an unconventional and complicated mineral the definition of its chemical composition and crystal structure have been through many revisions considering that its initial discovery.
The first specimens of boleite were being uncovered by Eduoard Cumenge, a French mining engineer. Yet another rare halide mineral within the similar spot, with a similar composition and a slightly various chemical composition, was named cumengite in honor of Cumenge.
There are several options of boleite that make it of specific fascination to collectors. For one thing, it's got an abnormal chemical composition, being a hydrated guide copper silver chloride hydroxide. It includes sizeable quantities of these metals, with about 49% lead, fourteen% copper and nine% silver. Secondly, ΑσημÎνια Δαχτυλίδια it's got an interesting crystal composition, considering that boleite is always pseudocubically twinned. ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια That is definitely, Each and every dice-like crystal of boleite is in fact made up of three rectangular box-like crystals oriented at ideal angles to each other. Boleite also has a very eye-catching indigo colour plus some quite rare clear crystals happen to be 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 3.5. It's got a vitreous to pearly luster. It really is an unusually dense mineral, with a selected gravity of 5.05. Just Δαχτυλιδια Γυναικεια a few minerals, such as hematite and cassiterite, have a better density. Boleite's refractive index is usually really superior at 2.03-two.05; higher than sapphire, sphene and demantoid garnet.
Together with cumengite, there are a number of other minerals linked to boleite, including pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
As well as the deposit in Baja, Mexico, boleite has long been found ΑσημÎνια Δαχτυλίδια in Broken Hill in New South Wales, Australia; during the Mammoth District of Arizona in the United States; and ΛευκόχÏυσα from the Mendip Hills of Somerset, England.
