Materials
Scoria
Igneous Rocks
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Scoria, also called volcanic cinder, is a pyroclastic, highly vesicular, dark-colored volcanic rock formed by ejection from a volcano as a molten blob that cools in the air into discrete grains called clasts. It is riddled with macroscopic ellipsoidal vesicles, gas bubbles that give it a low density, though unlike pumice it typically sinks in water.
Facts
Formation ClassIgneous, pyroclastic (a highly vesicular, dark volcanic rock ejected as a molten blob and cooled in air) 1 Cross-Tradition Connections
Caused By
Caused by volcanic eruption: scoria forms from molten material ejected from a volcano and cooled in air. Fresh quote fetched live: the registered scoria-wikipedia quote covers vesicle texture, not origin.
In Discipline
Sources
1. Scoria (Wikipedia)
Wikimedia FoundationLead sectionQuote, Lead section
riddled with macroscopic ellipsoidal vesicles (gas bubbles).
1. Scoria (Wikipedia)
Wikimedia FoundationCaused By: Volcanism, Lead section, formation sentenceQuote, Caused By: Volcanism, Lead section, formation sentence
Scoria, also called volcanic cinder, is a pyroclastic, highly vesicular, dark-colored volcanic rock formed by ejection from a volcano as a molten blob and cooled in the air to form discrete grains called clasts.
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