Boleite was initially found out in Boleo, Mexico in 1891, inside of a location on the Baja peninsula that is becoming recognized for uncommon minerals. Boleite is this kind of an unusual and sophisticated mineral the definition of its chemical composition and crystal construction have undergone quite a few revisions considering the fact that its initially discovery.
The 1st specimens of boleite have been identified by Eduoard Cumenge, a French mining engineer. An additional scarce halide mineral with the identical place, with an analogous framework and a slightly different chemical composition, was named cumengite in honor of Cumenge.
There are several capabilities of boleite that make it of particular fascination to collectors. For something, it's got an abnormal chemical composition, becoming a hydrated guide copper silver chloride hydroxide. It includes substantial portions of these metals, with about forty nine% lead, fourteen% copper and 9% silver. Next, it has a captivating ΧÏυσά crystal framework, because boleite is often pseudocubically twinned. Which is, each dice-like crystal of boleite is actually made up ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια of 3 rectangular box-like crystals oriented at correct angles to one another. Boleite also has an incredibly appealing indigo shade and a few pretty unusual clear crystals are already cut as gemstones.
Boleite in MatrixBoleite in Matrix
Like Δαχτυλίδια Γυναικεία other halide minerals, for instance fluorite, boleite is very smooth, having a Mohs hardness ranking of only 3 to 3.five. It has a vitreous to pearly luster. It can be 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 substantial at two.03-2.05; better than sapphire, sphene and demantoid garnet.
Along with cumengite, There are a variety of other minerals related to boleite, like pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, ΛευκόχÏυσα atacamite, mendipite and diaboleite.
Together with the deposit in Baja, Mexico, boleite continues to be present in Damaged Hill in New South Wales, Australia; in the Mammoth District of Arizona in The usa; and during the Mendip Hills Δαχτυλιδια skroutz of Somerset, England.
