Boleite was 1st learned in Boleo, Mexico in 1891, in a very area on the Baja peninsula that is now well-known for rare minerals. Boleite is such an unconventional and sophisticated mineral the definition of its chemical composition and crystal composition have been through many revisions given that its initial discovery.
The very first specimens of boleite were being learned by Eduoard Cumenge, a French mining engineer. One more uncommon halide mineral within the similar spot, with an identical composition and a rather various chemical composition, was named cumengite in honor of Cumenge.
There are many features of boleite which make it of specific desire to collectors. For something, it has an strange chemical composition, getting a hydrated lead copper silver chloride hydroxide. It has considerable quantities of those metals, with about 49% lead, fourteen% copper and 9% silver. Secondly, it's got ΧÏυσά an interesting crystal structure, considering the fact that boleite is usually pseudocubically twinned. ΧÏυσά Δαχτυλίδια That is, Just about every cube-like crystal of boleite is definitely composed Δαχτυλιδια swarovski of a few rectangular box-like crystals oriented at correct angles to one another. Boleite also has an extremely attractive indigo shade and some quite rare clear crystals have been Slice as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, like fluorite, boleite is kind of gentle, that has Δαχτυλίδια Γυναικεία a Mohs hardness score of only three to three.5. It has a vitreous to pearly luster. It is an unusually dense mineral, with a certain gravity of 5.05. Just a few minerals, which include hematite and cassiterite, have a better density. Boleite's refractive index is also quite high at 2.03-two.05; greater than sapphire, sphene and demantoid garnet.
Besides 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 ΧÏυσά has been 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.
