BUSTAMITE Meaning and
Definition
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Bustamite is a mineral that belongs to the pyroxenoid group of minerals. It is a calcium silicate mineral, with the chemical formula CaMnSi_2O_6. Bustamite is named after Manuel Bustamante, a Chilean mine owner who contributed to the discovery of this mineral.
In terms of its physical characteristics, bustamite typically occurs as prismatic or tabular crystals, which can vary in color from pink to reddish-brown or dark brown. It has a Mohs hardness of 5.5 to 6, which means it is relatively hard and can scratch glass. Bustamite generally has an uneven fracture and a vitreous to dull luster. It has a specific gravity ranging from 3.3 to 3.5.
This mineral is often found in contact metamorphic environments, occurring in association with other manganese-rich minerals such as rhodonite, tephroite, and spessartine. However, it can also be found in metamorphosed manganese-rich iron formations and skarn deposits.
Bustamite has various industrial uses including as a manganese ore, but its primary significance lies in its role as a collector's mineral and sometimes as a gemstone. Its attractive colors, relative rarity, and interesting crystal shapes make it sought after by mineral enthusiasts and collectors.
Overall, bustamite is a calcium silicate mineral that commonly occurs as prismatic crystals in contact metamorphic environments. It is notable for its color range, hardness, and occurrence alongside other manganese-rich minerals.
Etymology of BUSTAMITE
The word "bustamite" is derived from the name of the town Bustamante, located in Tamaulipas, Mexico. It was first discovered and named after the town by Friedrich Wilhelm Baron Strömeyer, a German chemist and mineralogist, in the early 19th century. Bustamite is a relatively rare calcium manganese silicate mineral, and its name simply reflects its original source of discovery.
