BOLEITE Meaning and
Definition
-
Boleite is a rare and highly sought-after mineral that belongs to the class of halide minerals. Its name is derived from the type locality in the Boleo mining district of Baja California, Mexico, where it was first discovered. Boleite typically occurs as small, prismatic or cubic crystals that are usually opaque, with a vitreous to resinous luster. It commonly exhibits colors ranging from deep blue to dark blue-black, with occasional hints of green or gray. The crystal structure of boleite is classified as monoclinic, and it is often found associated with other minerals such as atacamite, pseudoboleite, and bondarite.
One of the distinguishing features of boleite is its characteristic transparency to light, which is known as pleochroism. This property allows the mineral to exhibit different colors when viewed from different angles. Boleite is also quite dense, with a specific gravity ranging from approximately 5.8 to 6.1. Its hardness on the Mohs scale is around 3 to 3.5, indicating a moderate resistance to scratching and abrasion.
Due to its relative rarity and exceptional beauty, boleite has become a highly sought-after collector's mineral. Its unique crystal form, captivating color, and association with other interesting minerals make it a prized specimen. However, its limited occurrence and small crystal size contribute to its high value within the gem and mineral market. Boleite is not currently used in any industrial applications, primarily due to its scarcity and restricted availability.
Etymology of BOLEITE
The word "boleite" comes from the locality where it was first discovered. It is derived from the Pala District in San Diego County, California, where this mineral was first found. The name "boleite" was given to this mineral in 1891 by R. H. Solly, an English mineralogist and curator of the British Museum, in honor of Henry A. Bole, a mineral collector who contributed specimens to the British Museum collection.
