Boleite was initially uncovered in Boleo, Mexico in 1891, in the area from the Baja peninsula that has become well known for scarce minerals. Boleite is these an strange and complicated mineral that the definition of its chemical composition and crystal composition have gone through a number of revisions because its first discovery.
The main specimens of boleite ended up 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 lots of attributes of boleite which make it of distinct interest to collectors. For something, it has an unconventional chemical composition, currently being a hydrated lead copper silver chloride hydroxide. It incorporates important quantities of those metals, with about 49% guide, 14% copper and nine% silver. Secondly, it's a Δαχτυλιδια ΜονοπετÏα fascinating crystal composition, considering that boleite is always pseudocubically twinned. That is definitely, Each and every dice-like crystal of boleite is really made up of three rectangular box-like crystals oriented at suitable angles to each other. Boleite also has an exceedingly desirable indigo coloration and several very exceptional transparent crystals are Reduce as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, Δαχτυλιδια swarovski for instance fluorite, boleite is very tender, having a Mohs hardness ranking of only 3 to 3.five. It has Δαχτυλιδια ΜοντεÏνα a vitreous to pearly luster. It can be an unusually dense mineral, Δαχτυλιδια bulgari with a specific gravity of five.05. Only some minerals, including hematite and ΧÏυσά cassiterite, have the next density. Boleite's refractive index can also be incredibly higher at two.03-two.05; larger than sapphire, sphene and demantoid garnet.
In combination with 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 has been present in Damaged Hill in New South Wales, Australia; during the Mammoth District of Arizona in The us; and from the Mendip Hills of Somerset, England.
