Boleite was first found out in Boleo, Mexico in 1891, in a very region from the Baja peninsula that has become famous for scarce minerals. Boleite is these an strange and complicated mineral that the definition of its chemical composition and crystal framework have gone through a number of revisions because its first discovery.
The main specimens of boleite ended up identified by Eduoard Cumenge, a French mining engineer. Another scarce halide mineral with the identical location, with an analogous construction and a slightly unique chemical composition, was named cumengite in honor of Cumenge.
There are various characteristics of boleite that make it of individual fascination to collectors. For one thing, it's got an strange chemical composition, currently being a hydrated lead copper silver chloride hydroxide. It incorporates important quantities of such metals, with about 49% guide, 14% copper and nine% silver. Secondly, it's got an interesting crystal composition, due to the fact boleite is always pseudocubically twinned. That is, Just about every cube-like crystal of boleite is definitely composed of a Δαχτυλιδια skroutz few rectangular box-like crystals oriented at correct angles to one another. Boleite also has an extremely attractive indigo shade and a few pretty unusual clear Δαχτυλιδια skroutz crystals happen to be Reduce as gemstones.
Boleite in MatrixBoleite in Matrix
Like other ΑσημÎνια Δαχτυλίδια halide minerals, for example fluorite, boleite is quite comfortable, having a Mohs hardness Δαχτυλίδια score of only three to 3.five. It has a vitreous to pearly luster. It can be an unusually dense mineral, with a specific gravity of five.05. Only some minerals, including hematite and cassiterite, have the next density. Boleite's refractive index is additionally pretty large at 2.03-two.05; greater 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 Δαχτυλίδια Γυναικεία Baja, Mexico, boleite continues to be present in Damaged Hill in New South Wales, Australia; in the Mammoth District of Arizona in The us; and during the Mendip Hills of Somerset, England.
