Boleite was initially identified in Boleo, Mexico in 1891, within a region of your Baja peninsula that happens to be renowned for unusual minerals. Boleite is this sort of an unusual and sophisticated mineral the definition of its chemical composition and crystal construction have undergone quite a few revisions due to the fact its 1st discovery.
The initial specimens of boleite were found out by Eduoard Cumenge, a French mining engineer. A different unusual halide mineral in the exact site, with an identical structure and a rather distinct chemical composition, was named cumengite in honor of Cumenge.
There are several options of boleite that make it of specific fascination to collectors. For one thing, it's got an abnormal chemical composition, being a hydrated direct copper silver chloride hydroxide. It consists of sizeable quantities of such metals, with about forty nine% lead, fourteen% copper and 9% silver. Secondly, it's got an interesting crystal structure, due to the fact boleite is always pseudocubically twinned. That may be, Every single cube-like crystal of boleite is in fact made Δαχτυλιδια skroutz up of 3 rectangular box-like crystals oriented at right angles to one another. Boleite also has a very beautiful indigo color and many extremely scarce transparent crystals are actually Lower as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide Δαχτυλιδια skroutz minerals, which include fluorite, boleite is fairly soft, by using a Mohs hardness ranking of only 3 to three.5. Δαχτυλιδια skroutz It's a vitreous to pearly luster. It ΧÏυσά Δαχτυλίδια is actually an unusually dense mineral, with a particular gravity of five.05. Δαχτυλιδια swarovski Only a few minerals, for example hematite and cassiterite, have a higher density. Boleite's refractive index can be very substantial 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.
Besides the deposit in 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 from the Mendip Hills of Somerset, England.
