خاکستر آتشفشانی
Also known as volcanic tuff
thumb|Cliff face of welded tuff pockmarked with holes — some natural, some man-made — from Bandelier National Monument, [[New Mexico]] thumb|Etruscan architecture|Etruscan tuff blocks from a tomb at [[Banditaccia, Italy]] thumb|upright|A house constructed of tuff blocks in Rieden, Rhineland-Palatinate, in the [[Volcanic Eifel region, Germany]]
AI overview
Tuff is a type of rock formed from volcanic ash that has been compacted and sometimes fused together by heat. It has been used historically as a building material, as seen in structures ranging from Etruscan tombs to houses in volcanic regions like Germany and the American Southwest.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Rock.name
- Tuff
- Rock.type
- Igneous
- Rock.image
- Guadalupe Tuff.jpg
- Rock.caption
- Tuff from the Guadalupe Formation in Luzon, Philippines
- Rock.composition
- Volcanic ash
- Rock.composition_secondary
- Quartz, feldspars (sanidine, anorthoclase, plagioclase), biotite, pyroxene (augite), hornblende, and magnetite
- Rock.class
- Mafic to felsic
- Rock.texture
- Pyroclastic or Eutaxitic
via Wikipedia infobox