Boleite was 1st discovered in Boleo, Mexico in 1891, in a location with 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 very first specimens of boleite were being learned by Eduoard Cumenge, a French mining engineer. Yet another rare 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 individual fascination to collectors. For one thing, it's got an uncommon chemical composition, remaining a hydrated direct copper silver chloride hydroxide. It consists of sizeable quantities of such metals, with about 49% guide, 14% copper and nine% silver. Secondly, it's got an interesting crystal 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 Reduce Δαχτυλιδια ΜοντεÏνα as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, which include fluorite, boleite is very tender, using a Mohs Δαχτυλιδια ΜοντεÏνα hardness ranking of only 3 to three.five. It has a vitreous to pearly luster. It can be an Δαχτυλιδια ΜονοπετÏα unusually dense mineral, with a specific gravity of five.05. Only some minerals, including hematite and cassiterite, have the next ΛευκόχÏυσα density. Boleite's refractive index can also be incredibly higher at two.03-two.05; larger than sapphire, sphene and demantoid garnet.
In combination with cumengite, there are a number of other minerals connected to boleite, such as pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Besides the deposit in Baja, Mexico, boleite has been present in Damaged Hill in New South Wales, Australia; during the Mammoth District of Arizona in The us; and while in the Δαχτυλιδια bulgari Mendip Hills of Somerset, England.
