Boleite was first uncovered in Boleo, Mexico in 1891, in the area from the Baja peninsula that has become famous for exceptional minerals. Boleite is these 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 found by Eduoard Cumenge, a French mining engineer. Another exceptional halide mineral through the exact same location, with the same construction and a rather diverse chemical composition, was named cumengite in honor of Cumenge.
There are numerous attributes of boleite which make it of certain interest to collectors. For something, it has an unconventional chemical composition, currently being a hydrated lead copper silver chloride hydroxide. It has important quantities of those metals, with about 49% direct, 14% copper and nine% silver. Secondly, it's Δαχτυλιδια ΜονοπετÏα a fascinating crystal framework, because boleite ΧÏυσά is often pseudocubically twinned. Which is, Each individual cube-like crystal of boleite is actually composed of a few rectangular box-like crystals oriented at proper angles to one another. Boleite also has an extremely attractive indigo shade and some quite rare clear crystals happen to be Slice as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, like fluorite, boleite is sort of delicate, that has a Mohs hardness rating of only three to three.5. It's a vitreous to pearly luster. It is an unusually dense mineral, with a certain gravity of five.05. Only a few minerals, for Δαχτυλιδια ΜοντεÏνα instance hematite and cassiterite, have a greater density. Boleite's refractive index is likewise extremely significant at 2.03-2.05; better than sapphire, sphene and demantoid garnet.
Along with cumengite, There are a variety of other minerals associated with boleite, like pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
In addition to the deposit in Baja, Mexico, boleite is located in Damaged Hill in Δαχτυλιδια swarovski New South Wales, Australia; within the Mammoth District of Arizona in The usa; and in the Mendip Hills Δαχτυλιδια ΜοντεÏνα of Somerset, England.
