Unit3_LabSedMet done
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School
Broward College *
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Course
1000L
Subject
Geology
Date
Feb 20, 2024
Type
Pages
4
Uploaded by anth0vy
Rock Identification Lab Activity: Sedimentary and Metamorphic Rocks Instructions: Used the assigned reading sections and the charts below to identify the rock samples. Please make sure to carefully review the tutorial video on D2L that displays each sample virtually.
Sedimentary Rocks Identification Sample Grain Size Texture (Sediment Class) Properties Name 1 Fine grained sand Reddish Does not react to acid Gritty to touch sandstone 2 Fine grained clay Dark color High density Does not react to acid Hard minerals shale 3 Coarse grained gravel Reacts with acid Tan color Made of shell fragments coquina 4 Medium grained sand Reacts with acid Tan color limestone 5 Coarse grained gravel Does not react with acid Reddish brown color Different size grains congolomerate 6 Medium grained sand Low density Dark color coal
Metamorphic Rocks Identification Chart
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Metamorphic Rocks Identification Sample Grain Size Texture Composition Name 1 sand crystalline quartz quartzite 2 sand
earthy Organic matter Anthracite coal 3 Sand crystalline calcite marble 4 clay earthy Clay minerals slate 5 silt crystalline graphite schist 6 sand crystalline Felsic and mafic gneiss