SAHLITE Meaning and
Definition
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Sahlite is a term used in geology to describe a specific type of igneous rock. It refers to a fine-grained volcanic rock that is usually rich in feldspar minerals, primarily plagioclase feldspar. The term "sahlite" is primarily used in petrology and is derived from the German word "Sahl," which means mica schist.
Sahlite rocks typically have a gray to black color and can often display a porphyritic texture, meaning they contain larger crystals embedded in a fine-grained matrix. These rocks originate from volcanic eruptions and are often found in volcanic regions or areas associated with past volcanic activity. They can vary in composition depending on the specific minerals present, but a high concentration of plagioclase feldspar is a defining characteristic of sahlite.
Due to their fine-grained nature, sahlites often cool rapidly, resulting in a smooth texture and small crystal sizes. They are commonly associated with other volcanic rocks, such as basalt or andesite. Sahlites can be used as indicator minerals for determining the previous volcanic activity in an area or to understand the geological history of a region. Their mineral composition and texture provide valuable information about the conditions under which they formed, as well as the type of magma that was involved in their formation.
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A massive variety of augite of a dingy-green colour.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for SAHLITE
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