Boleite was very first found in Boleo, Mexico in 1891, in a region of your Baja peninsula that happens to be renowned for unusual minerals. Boleite is this sort of an uncommon and sophisticated mineral the definition of its chemical composition and crystal construction have undergone several revisions since its to start with discovery.
The 1st specimens of boleite have been found by Eduoard Cumenge, a French mining engineer. Another scarce halide mineral through 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, becoming a hydrated guide copper silver chloride hydroxide. It includes significant portions of those metals, with about 49% lead, fourteen% copper and 9% silver. Next, it has a captivating crystal framework, given that boleite is often pseudocubically twinned. That is certainly, Every dice-like crystal of boleite is really made up of three rectangular box-like crystals oriented at suitable angles to each other. Boleite also has an ΑσημÎνια Δαχτυλίδια exceptionally desirable indigo coloration and several very exceptional transparent crystals are Reduce as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, which include fluorite, boleite ΛευκόχÏυσα is fairly tender, which has a Mohs hardness score of only three to 3.five. It's got a vitreous to pearly luster. It truly is an ΑσημÎνια Δαχτυλίδια unusually dense mineral, with a selected gravity of 5.05. Only some minerals, Δαχτυλίδια like hematite and cassiterite, have an increased density. Boleite's refractive index can also be incredibly higher at two.03-two.05; larger than sapphire, sphene and demantoid garnet.
In combination with 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 continues to be present in Damaged Hill in New South Wales, Australia; within the Mammoth District Δαχτυλίδια Γυναικεία of Arizona in The usa; and during the Mendip Hills of Somerset, England.
