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Andesite

Igneous Rocks

Andesite is a volcanic rock of intermediate composition, the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained to porphyritic in texture and composed predominantly of sodium-rich plagioclase plus pyroxene or hornblende, and is the extrusive equivalent of plutonic diorite. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/

Facts
Kind
Rock 1
Formation Class
Igneous, extrusive (the volcanic equivalent of plutonic diorite, intermediate between basalt and rhyolite) 1
Classification
Classification
Igneous Rock 1
Use
Building and Construction 1
Connections

Associated With

Dacite, Materials

Compositional series: dacite sits between andesite and rhyolite in silica content.

Source Dacite (Wikipedia)
Diorite, Materials

Extrusive equivalent of intrusive diorite: same magma composition, different cooling rate and depth, not a derivation of one from the other.

Source Andesite (Wikipedia)

Caused By

Volcanism, Processes
Source Andesite (Wikipedia)

Classified As

Igneous Rocks, Subcategories

In Discipline

Geology, Disciplines
Sources
1. Andesite (Wikipedia)
Wikimedia Foundation
  • Lead section
    is the extrusive equivalent of plutonic diorite.
  • Article body
    Notable stonemasonry structures built with andesite include: Borobudur in Java, Indonesia Sacsayhuamán citadel in Peru Gate of the Sun in Bolivia Templo Mayor ruins and other historic buildings in Mexico City, built from andesite and Tezontle basaltic andesite == Extraterrestrial samples == In 2009, researchers reve
  • Article body, building-and-construction
    Notable stonemasonry structures built with andesite include: Borobudur in Java, Indonesia Sacsayhuamán citadel in Peru Gate of the Sun in Bolivia Templo Mayor ruins and other historic buildings in Mexico City, built from andesite and Tezontle basaltic andesite == Extraterrestrial samples == In 2009, researchers reve
  • Lead section
    Andesite is an aphanitic (fine-grained) to porphyritic (coarse-grained) igneous rock that is intermediate in its content of silica and low in alkali metals.
  • Caused By: Volcanism, Lead paragraph
    Andesite () is a volcanic rock of intermediate composition
View the Source
Wikidata: Andesite
Wikidata Q181908
Dacite (Wikipedia)
Wikimedia FoundationAssociated With: Dacite, Lead section
Quote, Associated With: Dacite, Lead section
intermediate in composition between andesite and rhyolite.
View the Source
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