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- Felsite abstract "Felsite (also called felstone [1]) 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.".
- Felsite thumbnail Pyrolusite_dendritic_on_felsite.jpg?width=300.
- Felsite wikiPageExternalLink Felsite.
- Felsite wikiPageID "610050".
- Felsite wikiPageRevisionID "603337399".
- Felsite hasPhotoCollection Felsite.
- Felsite subject Category:Igneous_petrology.
- Felsite subject Category:Volcanic_rocks.
- Felsite type Abstraction100002137.
- Felsite type IgneousRock114931879.
- Felsite type Material114580897.
- Felsite type Matter100020827.
- Felsite type Part113809207.
- Felsite type PhysicalEntity100001930.
- Felsite type Relation100031921.
- Felsite type Rock114696793.
- Felsite type Substance100019613.
- Felsite type VolcanicRock114933314.
- Felsite type VolcanicRocks.
- Felsite comment "Felsite (also called felstone [1]) 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).".
- Felsite label "Felsita".
- Felsite label "Felsite".
- Felsite label "Felsite".
- Felsite label "Felsite".
- Felsite label "Фельзит".
- Felsite label "珪長岩".
- Felsite sameAs Felsita.
- Felsite sameAs Felsite.
- Felsite sameAs Felsite.
- Felsite sameAs 珪長岩.
- Felsite sameAs m.02w6zx.
- Felsite sameAs Q2662981.
- Felsite sameAs Q2662981.
- Felsite sameAs Felsite.
- Felsite wasDerivedFrom Felsite?oldid=603337399.
- Felsite depiction Pyrolusite_dendritic_on_felsite.jpg.
- Felsite isPrimaryTopicOf Felsite.
