Formation
Mineral Content
Compound Content
Metamorphism
Types of Metamorphism
Weathering
Types of Weathering
Erosion
Types of Erosion
Chert forms when microcrystals of silicon dioxide grow within soft sediments that become limestone or chalk. The chert formation can be either of chemical or biological origin.
Taconite is a type of sedimentary rock formed when a river carries or transports pieces of broken rock as it flows. When the river reaches a lake or sea, its load of transported rocks settles or deposits at the bottom of sea or lake.
Hematite, Magnetite, Quartz
Fe, Iron(III) Oxide, Silicon Dioxide
Biological Weathering, Mechanical Weathering
Chemical Erosion, Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion