Formation
Charnockite is an intrusive igneous rock which is very hard and is formed due to weathering of existing rocks.
An argillite is a fine-grained sedimentary rock mainly composed of clay particles which forms from lithified muds which contain variable amounts of silt-sized particles.
Composition
Mineral Content
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz
Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Iron(III) Oxide, Potassium Oxide, MgO, Silicon Dioxide
Transformation
Metamorphism
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Types of Metamorphism
Contact Metamorphism, Impact Metamorphism
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Weathering
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Types of Weathering
Biological Weathering, Chemical Weathering
Biological Weathering
Erosion
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Types of Erosion
Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Chemical Erosion