Boleite was initial discovered in Boleo, Mexico in 1891, inside of a location on 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 primary specimens of boleite had been discovered by Eduoard Cumenge, a French mining engineer. A further unusual halide mineral from your same locale, with the same structure and a rather distinct chemical composition, was named cumengite in honor of Cumenge.
There are numerous attributes of boleite which make it of distinct interest to collectors. For something, it has an unconventional chemical composition, currently being a hydrated lead copper silver chloride hydroxide. It incorporates major quantities of such metals, with about 49% guide, 14% copper and nine% silver. Secondly, it's ΑσημÎνια Δαχτυλίδια got an interesting crystal structure, due to the fact boleite is usually pseudocubically twinned. That is, Just about every cube-like crystal of boleite is definitely Δαχτυλίδια composed of a few rectangular box-like crystals oriented at correct angles to one another. Boleite also has an extremely attractive indigo shade and some incredibly uncommon clear crystals happen to be Slash as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, including Δαχτυλίδια fluorite, boleite is quite comfortable, with a Mohs hardness score of only three to 3.five. It has a vitreous to pearly luster. It truly is an unusually dense mineral, with a specific gravity of five.05. Only some minerals, including hematite and cassiterite, have the next density. Boleite's refractive index is additionally pretty large at two.03-2.05; increased than sapphire, sphene and demantoid garnet.
In addition to cumengite, There are a variety of other minerals associated with boleite, like pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
In combination with the deposit in Baja, Mexico, ΛευκόχÏυσα boleite is located in Damaged Hill in New South Wales, Australia; within the Mammoth District of Arizona in The ΛευκόχÏυσα usa; and in the Mendip Hills of Somerset, England.
