Felsite - Wikipedia
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.
Felsite: Description, Characteristics, and Other FAQs - Yes Dirt
Felsite is a general term for a type of igneous rock that is characterized by its fine-grained or glassy texture. It typically has a lower silica content than other types of igneous rocks. It’s chemical composition is typically similar to that of granite. Felsite usually forms from the slow cooling of magma near the earth’s surface.
Felsite Definition & Meaning - Merriam-Webster
The meaning of FELSITE is a dense igneous rock consisting almost entirely of feldspar and quartz.
Felsite - Rock Identifier
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).
felsic and mafic rocks - Encyclopedia Britannica
In a widely accepted silica-content classification scheme, rocks with more than 65 percent silica are called felsic; those with between 55 and 65 percent silica are intermediate; those with between 45 and 55 percent silica are mafic; and those with less than 45 percent are ultramafic.
Felsic Rock Composition and Examples | Geology Base
2023年12月10日 · What is felsite? Felsite is a field term that refers to any aphanitic or very fine-grained rock yet to be identified and classified after a chemical or microscopic analysis.
Felsite | Geology Wiki | Fandom
Felsite (also called felstone) 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.
Properties of Felsite | Physical | Thermal - Compare Nature
There are various physical properties of Felsite like Hardness, Grain Size, Fracture, Streak, Porosity, Luster, Strength etc which defines it. The physical properties of Felsite rock are vital in determining its Felsite Texture and Felsite Uses .
Felsite - Natural Atlas
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.
Felsite: Mineral information, data and localities. - mindat.org
As a rock term initially used for the microcrystalline groundmass of porphyries but now more commonly used for microcrystalline rocks of granitic composition. The name had previously been used by Kirwan (1794) for a microcrystalline variety of feldspar. Synonym of: felstone, aphanite Compare with: felsophyre.
- 某些结果已被删除