Granite
Query URLs
https://term.museum-digital.de/md-de/tag/6025
- Note
- Granite (/ˈɡrænɪt/) is a coarse-grained (phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies underground. It is common in the continental crust of Earth, where it is found in igneous intrusions. These range in size from dikes only a few centimeters across to batholiths exposed over hundreds of square kilometers.
Granite is typical of a larger family of granitic rocks, or granitoids, that are composed mostly of coarse-grained quartz and feldspars in varying proportions. These rocks are classified by the relative percentages of quartz, alkali feldspar, and plagioclase (the QAPF classification), with true granite representing granitic rocks rich in quartz and alkali feldspar. Most granitic rocks also contain mica or amphibole minerals, though a few (known as leucogranites) contain almost no dark minerals.
-
Eckige Form mit Halsaufsatz
Eckige Form mit Halsaufsatz,...
Object information
Image: Keramikmuseum Westerwald - CC BY-NC-SA -
Leuchtenberger Granit
Granite sind die wohl...
Object information
Image: Geomuseum der WWU Münster - CC BY-NC-SA -
Mahlstein aus Granit
Komplett erhaltener länglich...
Object information
Image: Archäologie Nockemann - CC BY-NC-SA -
Göhrener Viadukt
Die Grundsteinlegung der...
Object information
Image: Museum Schloss Moritzburg Zeitz - CC BY-NC-SA -
Granit
Granit, weiße Färbung durch...
Object information
Image: Kreismuseum Bitterfeld - CC BY-NC-SA
References
[]