Boleite was 1st uncovered in Boleo, Mexico in 1891, within a region from the Baja peninsula that happens to be famous for exceptional minerals. Boleite is these an abnormal and complex mineral that the definition of its chemical composition and crystal framework have gone through several revisions since its to start with discovery.
The 1st specimens of boleite have been identified by Eduoard Cumenge, a French mining engineer. An additional scarce halide mineral with the identical place, with an analogous framework and a slightly distinctive chemical composition, was named cumengite in honor of Cumenge.
There are plenty of capabilities of boleite that make it of particular fascination to collectors. For one thing, it's got an abnormal chemical composition, being a hydrated guide copper silver chloride hydroxide. It includes significant portions of these metals, with about forty nine% lead, fourteen% copper and 9% silver. Next, it has a captivating crystal framework, because boleite is often pseudocubically twinned. Which is, Each individual cube-like crystal of boleite is actually composed of a few rectangular box-like crystals oriented at proper angles to each other. Boleite also has an incredibly appealing indigo coloration and a few pretty unusual clear crystals are already cut as gemstones.
Boleite in Δαχτυλιδια Φθηνα MatrixBoleite in Matrix
Like other halide minerals, for example fluorite, boleite is quite comfortable, with a Mohs hardness score of only three to 3.five. It Δαχτυλιδια ΜονοπετÏα has a vitreous to pearly luster. It truly is an unusually dense mineral, with a specific gravity of 5.05. Δαχτυλιδια Φθηνα Only some minerals, including hematite and cassiterite, have the next density. Boleite's ΑσημÎνια Δαχτυλίδια 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 is located in Damaged Hill in New South Wales, Australia; inside the Mammoth District of Arizona in The usa; ΧÏυσά Δαχτυλίδια and in the Mendip Hills of Somerset, England.
