Boleite was initially learned in Boleo, Mexico in 1891, in the area in the Baja peninsula that is now well-known 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 identical place, with an analogous framework and a slightly distinctive chemical composition, was named cumengite in honor of Cumenge.
There are plenty of capabilities of boleite that make it of particular fascination to collectors. For one thing, it's got an abnormal chemical composition, being a hydrated direct copper silver chloride hydroxide. It incorporates sizeable quantities of such metals, with about forty nine% lead, ΧÏυσά Δαχτυλίδια fourteen% copper and nine% silver. Secondly, it's got an interesting crystal composition, due to the fact boleite is Δαχτυλίδια Γυναικεία always pseudocubically twinned. That may be, Every single cube-like crystal of boleite is in fact made up of 3 rectangular box-like crystals oriented at right angles to one another. Boleite also has a really beautiful indigo colour and many extremely scarce transparent crystals are actually Lower as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, which include fluorite, boleite is fairly tender, using 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 ΧειÏοποίητα 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.
In addition to the deposit in ΧÏυσά Baja, Mexico, boleite has become located in Broken Hill in New South Wales, Australia; inside the Mammoth District of ΛευκόχÏυσα Arizona in America; and within the Mendip Hills of Somerset, England.
