Boleite was very first discovered in Boleo, Mexico in 1891, inside a region of the Baja peninsula that has become famous for scarce minerals. Boleite is these types of an strange and complicated mineral that the definition of its chemical composition and crystal composition have gone through numerous revisions because its first discovery.
The main 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 characteristics of boleite which make it of distinct interest to collectors. For something, it has an unconventional chemical composition, currently being a hydrated lead copper silver chloride hydroxide. It incorporates important quantities of those metals, with about 49% guide, 14% Δαχτυλιδια ΜοντεÏνα copper and nine% silver. Secondly, it's got a fascinating crystal composition, given that Δαχτυλιδια ΜονοπετÏα boleite is often pseudocubically twinned. That is certainly, Every dice-like crystal of ΧÏυσά boleite is really made up of three rectangular box-like crystals oriented at suitable angles to each other. Boleite also has an exceptionally desirable indigo coloration and several very exceptional transparent crystals are actually Lower as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, such as fluorite, boleite is fairly soft, by using a Mohs hardness ΧειÏοποίητα Δαχτυλίδια rating of only 3 to three.5. It's a vitreous to pearly luster. It is an unusually dense mineral, with a certain gravity of five.05. Only a few minerals, for instance hematite and cassiterite, have a greater density. Boleite's refractive index is likewise extremely significant at 2.03-2.05; bigger than sapphire, sphene and demantoid garnet.
As well as cumengite, There are a selection of other minerals related to boleite, like pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
In addition to the deposit in Baja, Mexico, boleite has become located in Broken Hill in New Δαχτυλιδια Γυναικεια South Wales, Australia; inside the Mammoth District of Arizona in America; and in the Mendip Hills of Somerset, England.
