Boleite was very first uncovered in Boleo, Mexico in 1891, in the area in the Baja peninsula that is now well-known for rare minerals. Boleite is these types of an unconventional and complicated mineral the definition of its chemical composition and crystal structure have been through many revisions considering that its very first discovery.
The very first specimens of boleite were found out by Eduoard Cumenge, a French mining engineer. A different unusual halide mineral in the same site, with an identical 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, fourteen% copper and nine% silver. Secondly, it's got an interesting crystal structure, ΑσημÎνια Δαχτυλίδια due to the fact boleite is usually pseudocubically twinned. That is, Just about every cube-like crystal of boleite is definitely composed of a few rectangular box-like ΑσημÎνια Δαχτυλίδια crystals oriented at proper angles to one another. Boleite also has an extremely ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια attractive indigo shade and a few incredibly uncommon clear crystals have already been Slash as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, for example Δαχτυλιδια ΜοντεÏνα fluorite, boleite is quite comfortable, with a Mohs hardness score of only three to 3.five. It has a vitreous to pearly luster. It can be 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 Δαχτυλιδια swarovski of other minerals affiliated with boleite, which includes pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
In combination with the deposit in Baja, Mexico, boleite continues to be present in Damaged Hill in New South Wales, Australia; within the Mammoth District of Arizona in The usa; and during the Mendip Hills of Somerset, England.
