What does felsic mean?
Definitions for felsic
fel·sic
This dictionary definitions page includes all the possible meanings, example usage and translations of the word felsic.
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Wiktionary
felsicadjective
Enriched in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium.
Wikidata
Felsic
In geology felsic refers to igneous rocks that are relatively rich in elements that form feldspar and quartz. It is contrasted with mafic rocks, which are relatively richer in magnesium and iron. It refers to those rocks rich in silicate minerals, magma, and rocks which are enriched in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. They are usually light in color and have specific gravities less than 3. The most common felsic rock is granite. Common felsic minerals include quartz, muscovite, orthoclase, and the sodium-rich plagioclase feldspars. In terms of chemistry, felsic minerals and rocks are on the other end of the elemental spectrum from the mafic minerals and rocks. In modern usage, the term acid rock, although sometimes used as a synonym, refers to a high-silica-content volcanic rock, such as rhyolite. The term was used more broadly in older geologic literature. It is considered archaic now, as the terms "acidic" and "basic rock" were based on an incorrect idea, dating from the 19th century, that silicic acid was the chief form of silicon occurring in rocks. The term "felsic" combines the words "feldspar" and "silica". The similarity of the term felsic to the German words Fels, meaning "rock", and felsig, meaning "rocky", is purely accidental, as feldspar is a borrowing from German Feldspat, which derives from German Feld, meaning "field".
Numerology
Chaldean Numerology
The numerical value of felsic in Chaldean Numerology is: 5
Pythagorean Numerology
The numerical value of felsic in Pythagorean Numerology is: 9
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"felsic." Definitions.net. STANDS4 LLC, 2024. Web. 23 Apr. 2024. <https://www.definitions.net/definition/felsic>.
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