Boleite was 1st uncovered in Boleo, Mexico in 1891, in the area in the Baja peninsula that is now well known for scarce minerals. Boleite is these types of an strange and complicated mineral which the definition of its chemical composition and crystal structure have been through various revisions due to the fact its 1st discovery.
The primary specimens of boleite had been discovered by Eduoard Cumenge, a French mining engineer. A further unusual halide mineral from your exact same locale, with the same construction and a rather diverse chemical composition, was named cumengite in honor of Cumenge.
There are numerous attributes of boleite which make it of distinct interest to collectors. For another thing, it has an unconventional chemical composition, getting a hydrated lead copper silver chloride hydroxide. It has considerable 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, Each and every cube-like crystal of boleite is in fact composed of 3 rectangular box-like crystals oriented at right angles to one another. Boleite also has a really beautiful indigo colour plus some quite rare clear crystals have been Slice as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, including fluorite, boleite Δαχτυλιδια Φθηνα is sort of gentle, that has a Mohs hardness rating of only three to three.5. It's got a vitreous to pearly luster. It's an unusually dense mineral, with a certain gravity of 5.05. Just a few minerals, which include hematite and cassiterite, have a greater density. Boleite's refractive index is usually really superior at 2.03-two.05; bigger than sapphire, sphene and demantoid garnet.
Together with ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια cumengite, There are a selection of other minerals connected with boleite, together with pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
As well as ΑσημÎνια Δαχτυλίδια the deposit in Baja, Mexico, boleite has actually been found in Broken Hill in New South Wales, Australia; from ΧειÏοποίητα Δαχτυλίδια the Mammoth District of Arizona in the United States; and inside the Mendip Δαχτυλίδια Γυναικεία Hills of Somerset, England.
