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 sophisticated mineral the definition of its chemical composition and crystal structure have been through various revisions due to the fact its 1st discovery.
The initial specimens of boleite were learned by Eduoard Cumenge, a French mining engineer. One more uncommon halide mineral from the similar spot, with a similar 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 portions of those metals, with about forty nine% direct, 14% copper and nine% silver. Secondly, it's a fascinating crystal framework, given that boleite is often pseudocubically twinned. That may be, Just about every cube-like crystal of boleite is definitely Δαχτυλιδια Φθηνα composed of a few rectangular box-like crystals oriented at proper angles to one another. Boleite also has an Δαχτυλιδια ΜονοπετÏα incredibly appealing indigo coloration and a few pretty unusual clear crystals are already Reduce as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, for instance fluorite, boleite is very tender, using ΛευκόχÏυσα a Mohs hardness ranking of only 3 to three.five. It has a vitreous to pearly luster. It is actually ΧειÏοποίητα Δαχτυλίδια an unusually dense mineral, with a particular gravity of five.05. Only a few minerals, for example hematite and cassiterite, have a higher density. Boleite's refractive index can be very substantial at two.03-2.05; increased than sapphire, sphene and demantoid garnet.
Along with cumengite, There are a variety of other minerals associated with boleite, like pseudoboleite, chloroxiphite, paralaurionite, ΧÏυσά Δαχτυλίδια matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
In combination with the deposit in Baja, Mexico, boleite is located in Damaged Hill in New South Wales, Australia; within the Mammoth District of Arizona in The usa; and in the Mendip Hills of Somerset, England.
