Boleite was very first discovered in Boleo, Mexico in 1891, in a location 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 several revisions since its to start with discovery.
The 1st specimens of boleite ended up found by Eduoard Cumenge, a French mining engineer. Another scarce halide mineral through the identical location, with an analogous construction and a slightly unique chemical composition, was named cumengite in honor of Cumenge.
There are various functions of boleite that make it of unique curiosity to collectors. For one thing, it's an uncommon chemical composition, remaining a hydrated direct copper silver chloride hydroxide. It consists of sizeable quantities of such metals, with about 49% lead, fourteen% copper and 9% silver. Δαχτυλιδια ΜοντεÏνα Next, it has a captivating crystal construction, since boleite is often pseudocubically twinned. That's, Each individual cube-like crystal of Δαχτυλιδια Γυναικεια boleite is definitely composed of a few rectangular box-like crystals oriented at proper angles to one another. Boleite Δαχτυλιδια Φθηνα also has an incredibly attractive indigo shade and a few pretty uncommon clear ΧÏυσά Δαχτυλίδια crystals have already been Slash as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, including fluorite, boleite is quite comfortable, with a Mohs hardness score of only three to 3.five. It's got a vitreous to pearly luster. It really is an unusually dense mineral, with a selected gravity of 5.05. Just a few minerals, which include hematite and cassiterite, have an Δαχτυλιδια bulgari increased density. Boleite's refractive index is additionally pretty large at two.03-2.05; increased 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.
