Boleite was very first discovered in Boleo, Mexico in 1891, in a location with the Baja peninsula that is becoming recognized for uncommon minerals. Boleite is such an unconventional and sophisticated mineral the definition of its chemical composition and crystal structure have been through various 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 same site, with the same structure and a rather distinct chemical composition, was named cumengite in honor of Cumenge.
There are many options of boleite which make it of specific fascination to collectors. For something, it's got an abnormal chemical composition, being a hydrated guide copper silver chloride hydroxide. It includes significant portions of these metals, with about 49% lead, fourteen% Λευκόχρυσα copper and nine% silver. Secondly, it's got an interesting crystal structure, considering that boleite is always pseudocubically twinned. That is definitely, Each and every dice-like crystal of boleite is really made Λευκόχρυσα up of three rectangular box-like crystals oriented at ideal angles to each other. Boleite also has an exceedingly eye-catching Χρυσά Δαχτυλίδια indigo color and many very exceptional transparent crystals are already Reduce as Δαχτυλίδια Γυναικεία gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, for instance fluorite, boleite is very smooth, having a Mohs hardness score 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 5.05. Only some minerals, including hematite and cassiterite, have the next density. Boleite's refractive index can also be incredibly higher at two.03-two.05; greater Ασημένια Δαχτυλίδια than sapphire, sphene and demantoid garnet.
Besides cumengite, there are a number of other minerals linked to boleite, including pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Together with the deposit in Baja, Mexico, boleite has long been found in Broken Hill in New South Wales, Australia; from the Mammoth District of Arizona in the United States; and inside the Mendip Hills of Somerset, England.