File:Amygdaloidal_andesite.jpg · Wikimedia Commons · See Wikimedia Commons
andésite
roche volcanique de composition intermédiaire
AI overview
Andesite is a volcanic rock that falls between basalt and rhyolite in terms of silica content, making it an intermediate type of igneous rock. It is composed mainly of sodium-rich plagioclase minerals along with pyroxene or hornblende, and has a fine-grained texture that may include some larger crystals visible to the naked eye.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Rock.name
- Andesite
- Rock.type
- Igneous
- Rock.image
- Amygdaloidal andesite.jpg
- Rock.caption
- A sample of andesite (dark groundmass) with amygdaloidal vesicles filled with zeolite. Diameter of view is 8 cm.
- Rock.composition
- Intermediate: plagioclase (often andesine) and pyroxene or hornblende
- Rock.composition_secondary
- Magnetites, biotite, sphene, and quartz
via Wikipedia infobox
Wikidata facts
- Image
- Amygdaloidal andesite.jpg
Show 2 more facts
- Commons category
- Andesite
- exact match
- purl.obolibrary.org/obo/ENVO_01000441
Article · Français
L’andésite est une roche volcanique, de composition intermédiaire et généralement de couleur grise. Appartenant à la série magmatique calco-alcaline, elle est caractéristique du volcanisme des zones de subduction (convergence).
Abstract from DBpedia / Wikipedia · CC BY-SA