1 Definition
1.1 Definition
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption
Minette is a variety of Lamprophyre and is porphyritic alkaline igneous rock which is mainly dominated by biotite and potassic feldspar
1.3 History
1.3.1 Origin
1.4.1 Discoverer
1.6 Etymology
From a Latin word tophous then in Italian tufo and finally tuff
From French mine ore, mine + ette
2.2 Class
Igneous Rocks
Igneous Rocks
2.3.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
2.5 Family
2.5.1 Group
2.6 Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock