Boleite was first found out in Boleo, Mexico in 1891, in a very location in the Baja peninsula that is now well-known for rare minerals. Boleite is such an unconventional 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 found by Eduoard Cumenge, a French mining engineer. Another scarce halide mineral through the identical location, 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 certain interest to collectors. For something, it has an strange chemical composition, getting a hydrated lead copper silver chloride hydroxide. It has considerable portions of those metals, with about forty nine% direct, fourteen% copper and 9% silver. Next, it has a captivating crystal construction, since boleite is usually pseudocubically twinned. That's, Each individual cube-like crystal of boleite is definitely composed of a few rectangular box-like crystals oriented at correct angles to one another. Boleite also has an extremely interesting indigo colour and some quite rare transparent crystals have been Minimize as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, Δαχτυλιδια Μονοπετρα such as fluorite, boleite is kind of soft, by using a Mohs hardness rating 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 example hematite and cassiterite, have a Δαχτυλιδια Γυναικεια higher density. Boleite's refractive index is additionally pretty large at two.03-2.05; increased than sapphire, sphene and demantoid garnet.
In Δαχτυλιδια Γυναικεια addition to cumengite, There are a variety of other minerals affiliated with Δαχτυλιδια Φθηνα boleite, such as pseudoboleite, chloroxiphite, paralaurionite, matlockite, Ασημένια Δαχτυλίδια chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Besides the deposit in Baja, Mexico, boleite continues to be present in Damaged Hill in New South Wales, Australia; in the Mammoth District of Arizona in The us; and from the Mendip Hills of Somerset, England.