Boleite was very first identified in Boleo, Mexico in 1891, within a region of the Baja peninsula that happens to be famous for exceptional minerals. Boleite is these kinds of an abnormal and complex mineral which the definition of its chemical composition and crystal framework have undergone several revisions since its to start with discovery.
The 1st specimens of boleite have been identified by Eduoard Cumenge, a French mining engineer. An additional scarce halide mineral with the identical place, with an analogous framework and a slightly distinctive chemical composition, was named cumengite in honor of Cumenge.
There are plenty of capabilities of boleite that make it of particular fascination to collectors. For one thing, it's got an abnormal chemical composition, being a hydrated guide copper silver chloride hydroxide. It is made up of substantial portions of those metals, with about forty nine% direct, fourteen% copper and 9% silver. Next, ΛευκόχÏυσα it's a fascinating crystal framework, given that boleite is often pseudocubically twinned. That is certainly, Every dice-like crystal ΑσημÎνια Δαχτυλίδια of boleite is really made up of 3 rectangular box-like crystals oriented at Δαχτυλίδια right angles to one another. Boleite also has a really beautiful indigo colour plus some quite rare clear crystals happen to be Slash as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, including 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 5.05. Only some minerals, like hematite and Δαχτυλίδια cassiterite, have the next density. Boleite's refractive index can also be incredibly higher 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, mendipite and diaboleite.
In combination with the deposit in Baja, Mexico, boleite is present in Damaged Hill in New South Wales, Australia; within the Mammoth District of Arizona in The usa; and during ΑσημÎνια Δαχτυλίδια the Mendip Hills of Somerset, England.
