1 Definition
1.1 Definition
Coquina is a sedimentary rock that is composed either wholly or almost entirely of the transported, abraded, and mechanically-sorted fragments of the shells of molluscs, trilobites, brachiopods, or other invertebrates
Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt
1.2 History
1.2.1 Origin
European Foreland Basins
Germany
1.2.2 Discoverer
Unknown
Christian Leopold von Buch
1.3 Etymology
From Concha (Latin)+ Coquina(Spanish) +conch(English)= Couquina (mid 19th century)
From Latin glaber bare, smooth, bald
1.4 Class
Sedimentary Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
1.6 Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock