Boleite was 1st uncovered in Boleo, Mexico in 1891, within a region on the Baja peninsula that is becoming recognized for uncommon minerals. Boleite is such an unconventional and sophisticated mineral the definition of its chemical composition and crystal structure have been through various revisions due to the fact its 1st discovery.
The initial specimens of boleite had been found out by Eduoard Cumenge, a French mining engineer. A different unusual halide mineral in the same locale, with the same structure and a rather distinct chemical composition, was named cumengite in honor of Cumenge.
There are many options of boleite which make it of specific desire to collectors. For another thing, it's an unusual chemical composition, staying a hydrated direct copper silver chloride hydroxide. It contains major quantities of such metals, with about 49% guide, fourteen% copper and nine% silver. Secondly, it's got an interesting crystal structure, Δαχτυλιδια skroutz due to the fact boleite is always pseudocubically twinned. That is, Just about every cube-like crystal of boleite is in fact composed of 3 rectangular box-like crystals oriented at correct angles to one another. Boleite also has a really interesting indigo colour plus some quite rare clear crystals have been Slice as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, for instance fluorite, boleite is very tender, using a Δαχτυλιδια ΜοντεÏνα Mohs hardness ranking of only 3 to three.five. It has a vitreous Δαχτυλίδια to pearly luster. It is actually 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 Δαχτυλιδια swarovski is additionally pretty large at two.03-2.05; increased than sapphire, sphene and demantoid garnet.
In addition to cumengite, There are ΑσημÎνια Δαχτυλίδια 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 is present in Damaged Hill in New South Wales, Australia; within the Mammoth District of Arizona in The usa; and in the Mendip Hills of Somerset, England.
