What does felsite mean?
Definitions for felsite
ˈfɛl saɪtfel·site
This dictionary definitions page includes all the possible meanings, example usage and translations of the word felsite.
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Wiktionary
felsitenoun
A fine grained volcanic extrusive rock, generally light in color, composed of felsic minerals.
The buff-colored dacites of the Superstition Mountains are felsites.
felsitenoun
Any light-colored volcanic rock whose true mineralogy is not yet determined.
Wikipedia
Felsite
Felsite is a very fine-grained volcanic rock that may or may not contain larger crystals. Felsite is a field term for a light-colored rock that typically requires petrographic examination or chemical analysis for more precise definition. Color is generally white through light gray, or red to tan and may include any color except dark gray, green or black (the colors of trap rock). The mass of the rock consists of a fine-grained matrix of felsic materials, particularly quartz, sodium and potassium feldspar, and may be termed a quartz felsite or quartz porphyry if the quartz phenocrysts are present. This rock is typically of extrusive origin, formed by compaction of fine volcanic ash, and may be found in association with obsidian and rhyolite. In some cases, it is sufficiently fine-grained for use in making stone tools. Its fine texture and felsic components allow for good knapped pieces, much like working chert, producing conchoidal fracture. Dendritic manganese oxides such as pyrolusite and/or iron oxides such as limonite may precipitate along rock crevices, giving some rock chunk surfaces multicolored or arborescent patterned textures.
Webster Dictionary
Felsitenoun
a finegrained rock, flintlike in fracture, consisting essentially of orthoclase feldspar with occasional grains of quartz
Etymology: [Cf. Feldspar.]
Wikidata
Felsite
Felsite is a very fine grained volcanic rock that may or may not contain larger crystals. Felsite is a field term for a light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. Color is generally white through light gray, or red to tan and may include any color except dark gray, green or black. The mass of the rock consists of a fine-grained matrix of felsic materials, particularly quartz, sodium and potassium feldspar, and may be termed a quartz felsite or quartz porphyry if the quartz phenocrysts are present. This rock is typically of volcanic origin, and may be found in association with obsidian and rhyolite. In some cases, it is sufficiently fine-grained for use in making stone tools.
Chambers 20th Century Dictionary
Felsite
fel′sīt, n. a fine-grained, compact rock, a variety of quartz-porphyry—also Fel′stone.—adj. Felsit′ic. [Fr.,—Ger. fels, rock.]
Anagrams for felsite »
lefties
liefest
Numerology
Chaldean Numerology
The numerical value of felsite in Chaldean Numerology is: 2
Pythagorean Numerology
The numerical value of felsite in Pythagorean Numerology is: 4
Translations for felsite
From our Multilingual Translation Dictionary
- 铁矿Chinese
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"felsite." Definitions.net. STANDS4 LLC, 2025. Web. 16 Mar. 2025. <https://www.definitions.net/definition/felsite>.
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