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Sedimentary+Rocks+Homework

Sedimentary+Rocks+Homework - Name 1 (1pt...

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Name:______________________________ Sedimentary Rocks Homework  1. Give the names of common minerals found in Sedimentary rocks? (1pt) Quartz, K-feldspar, calcite, dolomite, chert, halite, gypsum 2. What do you understand by sediments? What are the different types of sediments that form sedimentary rocks?  (2 pts) Sediments are loose grains and chemical residues of Earth materials, including rock fragments, mineral grains,  parts of plants or animals and rust. The different types are detrital, biochemical, and chemical. 3. Name 2 chemical sedimentary rocks and give reasons why those are chemical. (1 pt) Gypsum and halite because these rocks are comprised mostly of intergrown mineral crystals precipitated from  aqueous solutions and chemical resides 4. What is coal? How is it formed and what kind of sedimentary rock is it? (1 pt) Coal is black, layered, brittle rock; may be sooty or bright. It is formed from plant fragments/and or 
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