Boleite was initially identified in Boleo, Mexico in 1891, within a region of the Baja peninsula that happens to be renowned for unusual minerals. Boleite is this sort of an unusual and sophisticated mineral which the definition of its chemical composition and crystal construction have undergone quite a few revisions due to the fact its initially discovery.
The primary specimens of boleite had been 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 features of boleite which make it of specific desire 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, 14% copper and nine% silver. Secondly, it's a fascinating crystal framework, because boleite is often pseudocubically twinned. Which is, Each individual dice-like crystal of boleite is actually composed of a Δαχτυλιδια ΜονοπετÏα few rectangular box-like crystals oriented at proper angles to one another. Boleite also has an incredibly appealing indigo shade plus some very uncommon clear crystals Δαχτυλιδια bulgari have already been cut as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, Δαχτυλιδια ΜονοπετÏα for example fluorite, boleite is quite smooth, with a Mohs hardness score ΧÏυσά 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 affiliated with boleite, which includes pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, ΧÏυσά Δαχτυλίδια mendipite and diaboleite.
In combination with the deposit in Baja, Mexico, boleite is located in Damaged Hill in New South Wales, Australia; inside the Mammoth District of Arizona in The usa; and during the Mendip Hills of Somerset, England.
