Boleite was first discovered in Boleo, Mexico in 1891, in a location of your Baja peninsula that happens to be famous for exceptional 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 1st discovery.
The very first specimens of boleite were discovered by Eduoard Cumenge, a French mining engineer. A further exceptional halide mineral from your exact site, with the same structure and a rather distinct chemical composition, was named cumengite in honor of Cumenge.
There are various characteristics of boleite that make it of particular fascination to collectors. For one thing, it's got an abnormal chemical composition, becoming a hydrated guide copper silver chloride hydroxide. It is made up of substantial portions of those metals, with about forty nine% direct, fourteen% copper and 9% silver. Next, ΛευκόχÏυσα it's a fascinating crystal framework, considering that boleite is always pseudocubically twinned. That may be, Every single cube-like crystal of boleite is definitely made up Δαχτυλιδια ΜοντεÏνα of a few rectangular box-like crystals oriented ΑσημÎνια Δαχτυλίδια at appropriate angles to each other. Boleite also has an exceedingly beautiful indigo colour plus some really scarce transparent ΧειÏοποίητα Δαχτυλίδια crystals have been Minimize as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, such as fluorite, boleite is kind of gentle, that has a Mohs hardness rating of only three to three.5. It's got a vitreous to pearly luster. It really is an unusually dense mineral, with a selected gravity of 5.05. Only some minerals, like hematite and cassiterite, have an increased density. Boleite's refractive index can also be pretty large at two.03-2.05; better than sapphire, sphene and demantoid garnet.
Along with cumengite, There are a selection of other minerals connected with boleite, which include pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Along with the deposit in Δαχτυλίδια Γυναικεία Baja, Mexico, boleite has actually been found in Broken Hill in New South Wales, Australia; while in the Mammoth District of Arizona in the United States; and while in the Mendip Hills of Somerset, England.
