A chemical sedimentary rock.
Evaporites are formed in this depositional environment. Salts, carbonates, and sulfates mostly. Halite, sylvite, calcite, gypsum, etc.
Halite is recognized by the IMA as a valid mineral, not a rock. According to the website linked below, "Halite is an evaporative sedimentary rock composed primarily of the mineral halite (sodium chloride)."
A geode is a chemical sedimentary structure formed by mineral precipitation, similar to the way sedimentary cave structures are formed.
Biotite is a sheet silicate mineral in the mica group. It is formed from the metamorphosis of sedimentary rock under heat and pressure.
Chemical sedimentary rock, those formed from precipitation or evaporation from saturated solutions.
Sedimentary rocks can form when minerals in a body of water have so saturated the water that they precipitate out, like a cloud that is so full of moisture that it pours out rain. Some limestones are formed in this manner as the mineral calcite precipitates out of a saturated solution and undergoes the process of compaction and cementation. The supersaturated solutions can also be caused by evaporation of a body of water high in mineral content. As the water evaporates, the mineral percentage of the remaining solution becomes higher and higher, until the mineral crystallizes. Rocks such as rock salt and rock gypsum are formed in this manner. Sedimentation from precipitation and evaporation form rocks called chemical sedimentary rocks.
Flint is a chemical sedimentary rock formed from the precipitation of silica rich solutions in layers of marine sediments.
Halite is recognized by the IMA as a valid mineral, not a rock. According to the website linked below, "Halite is an evaporative sedimentary rock composed primarily of the mineral halite (sodium chloride)."
A geode is a chemical sedimentary structure formed by mineral precipitation, similar to the way sedimentary cave structures are formed.
Sedimentary rock
A geode is a chemical sedimentary structure formed by mineral precipitation, similar to the way sedimentary cave structures are formed.
Chemical sedimentary rocks form from solutions (water with something in it).
Clastic sedimentary rocks are formed from particles of pre-existing sedimentary, metamorphic, or igneous rock that are deposited, compacted, and cemented together by natural processes.Clastic sedimentary rock is made of fragments of rocks cemented together by a mineral such as calcite or quartz.
Biotite is a sheet silicate mineral in the mica group. It is formed from the metamorphosis of sedimentary rock under heat and pressure.
Chemical sedimentary rock, those formed from precipitation or evaporation from saturated solutions.
A mineral is a naturally occurring inorganic solid with a crystalline structure and a definite chemical formula. Most minerals are formed from the cooling or evaporation of solutions containing the elements necessary for mineral formation.
Sedimentary rocks can form when minerals in a body of water have so saturated the water that they precipitate out, like a cloud that is so full of moisture that it pours out rain. Some limestones are formed in this manner as the mineral calcite precipitates out of a saturated solution and undergoes the process of compaction and cementation. The supersaturated solutions can also be caused by evaporation of a body of water high in mineral content. As the water evaporates, the mineral percentage of the remaining solution becomes higher and higher, until the mineral crystallizes. Rocks such as rock salt and rock gypsum are formed in this manner. Sedimentation from precipitation and evaporation form rocks called chemical sedimentary rocks.
Sedimentary rocks can form when minerals in a body of water have so saturated the water that they precipitate out, like a cloud that is so full of moisture that it pours out rain. Some limestones are formed in this manner as the mineral calcite precipitates out of a saturated solution and undergoes the process of compaction and cementation. The supersaturated solutions can also be caused by evaporation of a body of water high in mineral content. As the water evaporates, the mineral percentage of the remaining solution becomes higher and higher, until the mineral crystallizes. Rocks such as rock salt and rock gypsum are formed in this manner. Sedimentation from precipitation and evaporation form rocks called chemical sedimentary rocks.