1 Definition
1.1 Definition
Metapelite is an old and currently not widely used field geological term for a clay rich fine-grained clastic sediment or sedimentary rock, i.e. mud or a mudstone
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite
1.2 History
1.2.1 Origin
1.2.2 Discoverer
1.3 Etymology
From Pelos or clay in Greek
Comendite derives its name from the area of Le Commende on San Pietro Island in Italy
1.4 Class
Metamorphic Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Medium Grained Rock, Opaque Rock