Boleite was first discovered in Boleo, Mexico in 1891, in a location with the Baja peninsula that has grown to be popular for uncommon minerals. Boleite is this kind of an unusual and sophisticated mineral the definition of its chemical composition and crystal structure have undergone various revisions due to the fact its 1st discovery.
The primary specimens of boleite had been discovered by Eduoard Cumenge, a French mining engineer. A further exceptional halide mineral from your exact same location, with the same construction and a rather diverse chemical composition, was named cumengite in honor of Cumenge.
There are lots of characteristics of boleite that make it of individual curiosity to collectors. For one thing, it's got an uncommon chemical composition, remaining a hydrated direct copper silver chloride hydroxide. It consists of substantial portions of these metals, with about forty nine% direct, fourteen% ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια copper and 9% silver. Next, it's a fascinating crystal framework, given that boleite is always pseudocubically twinned. That is definitely, Each and every cube-like crystal of boleite is in fact composed of 3 rectangular box-like crystals oriented at right angles to one another. Boleite also has an extremely attractive indigo shade and some incredibly uncommon clear crystals happen to be Slash as Δαχτυλιδια swarovski gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, including fluorite, boleite is sort of comfortable, by using a Mohs hardness rating of only three to three.5. It's a vitreous to pearly luster. It's an unusually dense mineral, with a certain gravity of 5.05. Just a few minerals, which include hematite and cassiterite, have a greater density. Boleite's refractive index is usually really superior at 2.03-two.05; higher than sapphire, sphene and demantoid garnet.
Besides cumengite, there are ΧÏυσά a number of other minerals linked to boleite, including pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
Together with the deposit in Baja, Mexico, boleite has been found in Damaged Hill Δαχτυλιδια Φθηνα in New South Wales, Australia; during the Mammoth District of Arizona in ΧÏυσά the United States; and while in the Mendip Hills of Somerset, England.
