Boleite was to start with found out in Boleo, Mexico in 1891, in a very area on the Baja peninsula that is becoming recognized for uncommon minerals. Boleite is this kind of an unusual and sophisticated mineral the definition of its chemical composition and crystal construction have undergone quite a few revisions considering the fact that 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 spot, with a similar framework and a slightly different chemical composition, was named cumengite in honor of Cumenge.
There are many features of boleite which make it of individual fascination to collectors. For something, it's got an strange chemical composition, getting a hydrated lead copper silver chloride hydroxide. It has important quantities of such metals, with about 49% guide, 14% copper and nine% silver. Secondly, it's got an interesting Δαχτυλιδια Γυναικεια crystal composition, due to the fact boleite is usually pseudocubically twinned. That is, Each individual cube-like crystal of boleite is definitely composed of a few rectangular box-like crystals oriented at proper ΛευκόχÏυσα angles to each other. Boleite also has an incredibly appealing indigo coloration and several very unusual transparent crystals are already Reduce as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, for instance fluorite, boleite is very tender, using a Mohs hardness ranking of only 3 to three.5. It's a vitreous to pearly luster. It is actually an unusually dense mineral, with a particular gravity of five.05. Only a few minerals, for instance hematite and cassiterite, have Δαχτυλιδια swarovski a higher density. Boleite's refractive index can be extremely significant at 2.03-2.05; better than sapphire, sphene and demantoid garnet.
As well as cumengite, There are a selection of other minerals related to boleite, which include pseudoboleite, chloroxiphite, paralaurionite, matlockite, ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Along with the deposit in Baja, Mexico, boleite has become located in Broken Hill in New South Wales, Australia; while in the Mammoth District of Arizona Δαχτυλίδια in America; and within the Mendip Hills of Somerset, England.
