Definition
It is a metamorphic magnesium rich rock because it is composed of the mineral talc
Taconite is a low-grade iron ore which belongs to sedimentary rock and containing about 27% iron and 51% silica
History
Origin
USA
Western Australia, Minnesota
Discoverer
Unknown
Newton Horace Winchell
Etymology
From 17th century, because of its greasy feel and use like a soap
From the name of Taconic Mountains in New England
Class
Metamorphic Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
-
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock