Boleite was first 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 rather different chemical composition, was named cumengite in honor of Cumenge.
There are several options 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 includes sizeable quantities of such metals, with about forty nine% lead, fourteen% copper and 9% silver. Secondly, it's got an interesting crystal composition, due to the fact boleite is always pseudocubically Δαχτυλιδια Γυναικεια twinned. That may be, Every single cube-like crystal of boleite is in fact Δαχτυλιδια Φθηνα made up of 3 rectangular box-like crystals oriented at right angles to one ΧÏυσά Δαχτυλίδια another. Boleite also has a very beautiful indigo colour plus some really rare transparent crystals have been Slice as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, like fluorite, boleite is kind of delicate, that has 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, such as hematite and cassiterite, have a better density. Boleite's refractive index is also Δαχτυλιδια ΜονοπετÏα really superior at 2.03-two.05; higher than sapphire, sphene and demantoid garnet.
Together with cumengite, There are a selection of other minerals connected with boleite, together with pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
As well as the deposit in Baja, Mexico, boleite has actually been present in Broken Hill in New South Wales, Australia; during the Mammoth District of Arizona in the United States; and while in the Δαχτυλιδια ΜοντεÏνα Mendip Hills of Somerset, England.
