Boleite was first discovered in Boleo, Mexico in 1891, in a location with the Baja peninsula that has grown to be popular for unusual minerals. Boleite is this sort of an uncommon and sophisticated mineral which the definition of its chemical composition and crystal construction have undergone several revisions because its first discovery.
The very first specimens of boleite were found out by Eduoard Cumenge, a French mining engineer. A different unusual halide mineral in the same locale, with the same structure 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 another thing, it has an unconventional chemical composition, staying a hydrated direct copper silver chloride hydroxide. It contains major quantities of such metals, with about 49% lead, 14% copper and nine% Δαχτυλιδια skroutz silver. Secondly, it's a fascinating crystal composition, considering that boleite is always ΧÏυσά Δαχτυλίδια pseudocubically twinned. That may be, Every single cube-like crystal of boleite is in fact composed of 3 rectangular box-like crystals oriented at correct angles to one another. Boleite also has an extremely attractive indigo shade and some incredibly uncommon clear crystals happen to be Slash as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, including fluorite, boleite is quite comfortable, with a Mohs hardness score of only 3 to 3.five. It has a vitreous to pearly luster. It can be an unusually dense mineral, with a ΧειÏοποίητα Δαχτυλίδια specific gravity of 5.05. Just a few minerals, such as hematite and cassiterite, have an increased density. Boleite's refractive index is also quite high 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 continues to be present in Δαχτυλιδια bulgari Damaged Hill in New South Wales, Australia; within the Mammoth District of Arizona in The usa; and during Δαχτυλιδια Γυναικεια the Mendip Hills of Somerset, England.
