Definition
Migmatite is typically a granitic rock within a metamorphic host rock which is composed of two intermingled but distinguishable components
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption
History
Origin
Southern Alps, France
Italy
Discoverer
Jakob Sederholm
Unknown
Etymology
From the Greek word migma which means a mixture
From a Latin word tophous then in Italian tufo and finally tuff
Class
Metamorphic Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
Volcanic
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock