Boleite was first learned in Boleo, Mexico in 1891, in a very area in the Baja peninsula that is now well-known for rare minerals. Boleite is these types of an strange and complicated mineral that the definition of its chemical composition and crystal composition have gone through numerous revisions since its to start with discovery.
The 1st specimens of boleite have been identified by Eduoard Cumenge, a French mining engineer. Another scarce halide mineral with the identical 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 distinct interest to collectors. For something, it has an strange chemical composition, getting a hydrated lead copper silver chloride hydroxide. It has considerable portions of those metals, with about forty nine% direct, 14% copper and nine% silver. Secondly, it's a fascinating crystal framework, because boleite is often pseudocubically twinned. Which is, each dice-like crystal of boleite is actually composed of a few rectangular box-like crystals oriented at appropriate angles to one another. Boleite also has an incredibly attractive indigo shade and a few incredibly uncommon clear crystals happen to be Slice as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, including fluorite, boleite is sort of delicate, that has a Mohs hardness rating of only three to 3.5. It's got a vitreous to pearly luster. It's an unusually dense mineral, with a certain gravity Δαχτυλίδια of 5.05. Just a few minerals, which include hematite and cassiterite, have a greater density. Boleite's refractive index is likewise extremely significant at 2.03-2.05; bigger ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια than sapphire, sphene and demantoid garnet.
As well as cumengite, There are a ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια selection of other minerals related to boleite, which include pseudoboleite, chloroxiphite, paralaurionite, Δαχτυλιδια ΜοντεÏνα matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
In Δαχτυλιδια Φθηνα addition to the deposit in Baja, Mexico, boleite has become located in Broken Hill in New South Wales, Australia; inside the Mammoth District of Arizona in America; and in the Mendip Hills of Somerset, England.
