1 Formation
1.1 Formation
Anthracite forms from the accumulation of plant debris in a swamp environment. When plant debris dies and falls into the swamp, the standing water of the swamp protects it from decay.
Essexite is a type of igneous rock, which is usually dark grey to black plutonic rock. For the formation of essexite, suitable magma with exact composition of K, Ba, Rb, Cs, Sr should be produced.
1.2 Composition
1.2.1 Mineral Content
Calcite, Clay, Clay Minerals
Augite, Feldspar, Hornblende, Nepheline, Olivine, Plagioclase, Pyroxene
1.2.2 Compound Content
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur
Aluminium Oxide, Ba, Ca, Cs, Potassium, Rb, Sodium, Sr
1.3 Transformation
1.3.1 Metamorphism
1.3.2 Types of Metamorphism
Burial Metamorphism, Contact Metamorphism, Regional Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism
1.3.3 Weathering
1.3.4 Types of Weathering
Not Applicable
Biological Weathering, Chemical Weathering
1.3.5 Erosion
1.3.6 Types of Erosion
Not Applicable
Coastal Erosion, Glacier Erosion, Water Erosion