Boleite was 1st discovered in Boleo, Mexico in 1891, in a location of your 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 quite a few revisions considering the fact that its 1st discovery.
The primary specimens of boleite had been 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 distinct chemical composition, was named cumengite in honor of Cumenge.
There are many features of boleite which make it of specific fascination to collectors. For something, it's got an abnormal chemical composition, being a hydrated guide copper silver chloride hydroxide. It includes significant portions of these metals, with about forty nine% direct, fourteen% copper and 9% silver. Next, ΧÏυσά it's a fascinating crystal framework, because boleite is often pseudocubically twinned. Which is, each dice-like crystal of boleite is ΑσημÎνια Δαχτυλίδια actually composed of three rectangular box-like crystals oriented at ideal angles to each other. Boleite also has an exceedingly ΧÏυσά & ΛευκόχÏυσα Δαχτυλίδια eye-catching indigo color and many very Δαχτυλιδια ΜοντεÏνα exceptional transparent crystals are Reduce as gemstones.
Boleite in MatrixBoleite in Matrix
Like other halide minerals, for instance fluorite, boleite is very tender, using a Mohs hardness ranking of only 3 to three.five. It has a vitreous to pearly luster. It can be 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 is additionally pretty large at two.03-2.05; increased than sapphire, sphene and demantoid garnet.
In addition to cumengite, There are a variety of other minerals affiliated with boleite, which includes pseudoboleite, chloroxiphite, paralaurionite, matlockite, chlorargyrite, bideauxite, atacamite, mendipite and diaboleite.
In combination with the deposit in Baja, Mexico, boleite has long been found in Broken ΑσημÎνια Δαχτυλίδια Hill in New South Wales, Australia; from the Mammoth District of Arizona in the United States; and inside the Mendip Hills of Somerset, England.
