Boleite was initially found in Boleo, Mexico in 1891, inside a location from the Baja peninsula that has become famous for scarce minerals. Boleite is these an abnormal and complex mineral which 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, getting a hydrated lead copper silver chloride hydroxide. It has important quantities of those metals, with about 49% guide, 14% copper and nine% silver. Secondly, it's got a fascinating crystal composition, considering that boleite is always pseudocubically twinned. That is definitely, Every single cube-like crystal of boleite is in fact made up of 3 rectangular box-like crystals oriented at right angles to one another. Boleite also has a very Δαχτυλιδια swarovski beautiful indigo colour plus some really unusual transparent crystals are already Reduce as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, for instance fluorite, boleite is very tender, having a Mohs hardness ranking of only 3 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, ΧειÏοποίητα Δαχτυλίδια including hematite and cassiterite, have the next density. Boleite's refractive index is additionally incredibly large at two.03-2.05; increased than ΧÏυσά Δαχτυλίδια sapphire, sphene and demantoid garnet.
Together with cumengite, There are a selection of Δαχτυλίδια other minerals connected with boleite, together with pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
As well as Δαχτυλιδια ΜοντεÏνα the deposit in Baja, Mexico, boleite has actually been found in Broken Hill in New South Wales, Australia; from the Mammoth District of Arizona in America; and inside the Mendip Hills of Somerset, England.
