Answer :
Microcrystalline limestone, travertine, and fossiliferous limestone are all types of sedimentary rocks that are formed from the accumulation and compression of organic or inorganic material.
Sedimentary rocks are formed through a process of weathering, erosion, and deposition of various materials, including minerals, organic matter, and even other rocks. Microcrystalline limestone, travertine, and fossiliferous limestone are all types of sedimentary rocks that share similar characteristics and formation processes.
Microcrystalline limestone is a fine-grained limestone that is formed from the accumulation of calcium carbonate-rich materials, such as shells and coral fragments. Travertine, on the other hand, is formed from the precipitation of calcium carbonate from mineral-rich groundwater. Fossiliferous limestone is a type of limestone that contains visible fossil remains, such as shells and skeletal fragments of marine organisms.
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Final answer:
Microcrystalline limestone, travertine, and fossiliferous limestone share common characteristics such as being composed of soft minerals, having fine-grained and homogeneous texture, and containing fossils.
Explanation:
Microcrystalline limestone, travertine, and fossiliferous limestone have several common characteristics:
They are composed of soft minerals such as halite, gypsum, and calcite, which makes them easily scratchable with steel or a copper penny.
They are commonly fine-grained and homogeneous in texture.
Fossils are frequently found in these types of limestone.
They react with dilute acid.
