CUSPIDINE Meaning and
Definition
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Cuspidine is a mineral that belongs to the silicate group, specifically the sorosilicate subclass. It is classified as a calcium aluminum borosilicate and has a chemical formula of Ca4(Si2O7)(F,OH)2. Cuspidine typically occurs as prismatic crystals, which may be transparent to translucent, and showcases a vitreous luster. It is often found in igneous rocks, particularly in volcanic environments, where it crystallizes from magma. The mineral is commonly associated with other silicate minerals like vesuvianite, wollastonite, and garnet.
The name "cuspidine" is derived from its characteristic pointed or cuspidate crystal habit, which is often observed in its elongated prismatic crystals. Cuspidine primarily occurs in shades of yellow, brown, or reddish-brown, but it can also exhibit colorless to white variations. The mineral is valued as a collector's specimen due to its unique crystal shape and its occurrence in certain specific localities.
In addition to its significance as a mineral specimen, cuspidine also has industrial applications. Its high calcium content makes it a potential source of calcium compounds used in various industries. As with many minerals, cuspidine is studied extensively to gain a better understanding of its physical properties, crystal structure, and formation pathways.
Etymology of CUSPIDINE
The word "cuspidine" has its roots in the Latin term "cuspis", meaning "point" or "tip". It is derived from the Proto-Indo-European root "*ku̯ep-", which also signifies "point" or "peak". In terms of geological terminology, "cuspidine" refers to a mineral from the pyroxene group, specifically a rare sodium calcium iron silicate mineral.
