Boleite was first found out in Boleo, Mexico in 1891, inside of a location on the Baja peninsula that is becoming recognized for uncommon 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 learned by Eduoard Cumenge, a French mining engineer. Yet another uncommon halide mineral within the similar area, with a similar composition 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 one thing, it's got an uncommon chemical composition, being a hydrated direct copper silver chloride hydroxide. It consists of sizeable quantities of such metals, with about 49% lead, fourteen% copper and 9% silver. Secondly, it's got an interesting crystal Δαχτυλιδια Γυναικεια composition, considering that boleite is always pseudocubically twinned. That is definitely, 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 eye-catching indigo color and many extremely exceptional transparent crystals are Lower as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, which include fluorite, boleite is fairly tender, using a Mohs hardness ranking of only 3 to Δαχτυλιδια swarovski three.five. It has a vitreous to pearly luster. It is actually an unusually dense mineral, with a particular gravity Δαχτυλιδια ΜοντεÏνα of five.05. Only a few minerals, Δαχτυλιδια ΜονοπετÏα for example hematite and cassiterite, have a higher density. Boleite's refractive index is additionally pretty large at two.03-2.05; increased ΧÏυσά than sapphire, sphene and demantoid garnet.
In addition to cumengite, There are a variety of other minerals affiliated with boleite, which includes pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
In combination with the deposit in Baja, Mexico, boleite continues to be present in Damaged Hill in New South Wales, Australia; within the Mammoth District of Arizona in The usa; and during the Mendip Hills of Somerset, England.
