BOLEITE on MATRIX
BOLEITE on MATRIX
SPECIMEN NR #:
Boleite is a rare, complex halide mineral represented by the formula KPb26Ag9Cu24(OH)48Cl62. Initially identified in 1891 as an oxychloride mineral, it crystallizes in deep-blue cubes and belongs to the isometric category. Several related minerals, including pseudoboleite, cumengite, and diaboleite, share its intricate crystal structure and exhibit similar bright-blue cubic forms. These minerals typically form in altered areas of lead and copper deposits, resulting from the interaction of chloride-rich solutions with primary sulfide minerals.
The external characteristics of boleite reveal its cubic crystal structure, placing it within the isometric crystal class. It exhibits perfect cleavage along the [001] direction and displays a very dark glossy blue hue, accompanied by a light greenish-blue streak. Twinning is prominently observed through notches at the interpenetrated angles, leading to a pseudocubic penetration twinning habit at three mutually perpendicular angles. Boleite crystals can reach sizes exceeding half an inch on each side, featuring pseudo-octahedral tetragonal dipyramids.
The crystal on this specimen is about 4.5 mm.
Specimen details
Specimen details
The numbers under "variant" are the measurements in mm and weight in grams. Where known, the origin of the specimen is mentioned. The number at the end, is the specimen number in our collection. Colours may vary, due to photography.
Care
Care
It's important to know that many minerals can be effectively cleaned with water. However, before using any cleaning methods, such as dissolvers or ultrasound, please take the time to research online. Improper use of these techniques could potentially harm your specimen.
Shipping
Shipping
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