Definition
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption
Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt
History
Origin
Italy
Germany
Discoverer
Unknown
Christian Leopold von Buch
Etymology
From a Latin word tophous then in Italian tufo and finally tuff
From Latin glaber bare, smooth, bald
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
Volcanic
Plutonic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock