SIENITE Meaning and
Definition
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Sienite is a type of igneous rock characterized by its composition and texture. It is primarily composed of the minerals plagioclase feldspar, alkali feldspar, and ferromagnesian minerals such as hornblende, biotite, or pyroxene. Sienite commonly forms in continental crust environments through the solidification and crystallization of molten magma.
The texture of sienite is typically coarse-grained, meaning that its individual mineral grains are visible to the naked eye. These grains interlock with each other, providing the rock with a strong and durable structure. Sienite's mineral composition and texture can vary, leading to variations in its colors and patterns. It commonly appears in shades of gray, but can also display hues of brown, green, or black.
Sienite has a number of practical applications due to its durability and aesthetically pleasing appearance. It is commonly used in construction as a dimension stone for countertops, tiles, and building façades. Its resistance to weathering and its low porosity make it suitable for outdoor use as well.
Geologically, sienite is closely related to granite, another common igneous rock. The main difference between the two lies in their mineral composition. While granite contains quartz as one of its major components, sienite lacks quartz and is instead dominated by feldspars. Sienite is generally considered a more specific term, while granite serves as a broader classification encompassing a wider range of similar rocks.
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Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for SIENITE
Etymology of SIENITE
The word "sienite" is derived from the Italian word "sienite", which ultimately originated from the Latin word "Senones". The Senones were an ancient Gallic tribe that lived in the area now known as modern-day France. They were known to have inhabited a region called "Siena" in Roman times, which is where the name "Sienite" is believed to have originated. Sienite refers to a type of coarse-grained igneous rock composed mainly of feldspar and lesser amounts of quartz and other minerals.
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