1 Definition
1.1 Definition
Taconite is a low-grade iron ore which belongs to sedimentary rock and containing about 27% iron and 51% silica
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
1.2 History
1.2.1 Origin
Western Australia, Minnesota
European Foreland Basins
1.2.2 Discoverer
Newton Horace Winchell
Unknown
1.3 Etymology
From the name of Taconic Mountains in New England
From Concha (Latin)+ Coquina(Spanish) +conch(English)= Couquina (mid 19th century)
1.4 Class
Sedimentary Rocks
Sedimentary Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
1.5 Family
1.5.1 Group
Not Applicable
Not Applicable
1.6 Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock