Boleite was to start with learned in Boleo, Mexico in 1891, in a very area on the Baja peninsula that is becoming recognized for uncommon minerals. Boleite is such an unconventional and complicated mineral the definition of its chemical composition and crystal structure have been through various revisions considering that its very first discovery.
The very first specimens of boleite were found out by Eduoard Cumenge, a French mining engineer. One more uncommon halide mineral from the similar area, with a similar composition and a slightly various chemical composition, was named cumengite in honor of Cumenge.
There are many options of boleite which make it of specific desire to collectors. For something, it has an strange chemical composition, getting a hydrated guide copper silver chloride hydroxide. It has considerable quantities of those metals, with about 49% ΧÏυσά direct, 14% copper and nine% silver. Secondly, it's a fascinating crystal composition, considering that boleite is always pseudocubically twinned. That may be, Every single cube-like crystal of boleite is in fact composed of 3 rectangular box-like crystals oriented Δαχτυλιδια skroutz at correct angles to one another. Boleite also has a really interesting indigo colour and some quite rare ΛευκόχÏυσα clear crystals happen to be Slice as gemstones.
Boleite in MatrixBoleite in Matrix
Like other ΧειÏοποίητα Δαχτυλίδια halide minerals, including fluorite, boleite is sort of comfortable, with a Mohs hardness score of only three to 3.five. It's got a vitreous to pearly luster. It really is an unusually dense mineral, with a selected gravity of 5.05. Only some minerals, Δαχτυλίδια Γυναικεία like hematite and cassiterite, have an increased density. Boleite's refractive index can also be incredibly high at two.03-two.05; greater than sapphire, sphene and demantoid garnet.
In combination with cumengite, there are a number of other minerals connected to boleite, such as pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Besides the deposit in Baja, Mexico, boleite continues to be present in Damaged Hill in New South Wales, Australia; in the Mammoth District of Arizona in The us; and from the Mendip Hills of Somerset, England.
