Definition
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption
Ignimbrite is a volcanic rock consisting mainly of pumice fragments, formed by the consolidation of material deposited by pyroclastic flows
History
Origin
Italy
New Zealand
Discoverer
Unknown
Patrick Marshall
Etymology
From a Latin word tophous then in Italian tufo and finally tuff
From Latin ignis fire + imber, imbr- shower of rain, storm cloud + -ite
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock