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GLG 101 Appendix K (Solutions) - rather around them...

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Axia College Material Appendix K Metamorphic Rock Identification Full Name Date Examine the images of the five rocks below. Identify as many characteristics as possible and enter the information in the table below. Based upon the observed characteristics, identify each specimen in the last column of the table. You may want to refer to Table 6.1 in Geoscience Laboratory (p. 108). Submit the completed Appendix in the Individual forum. Rock Specimen 1. 2. 3. 4.
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5. Rock Identification Specimen number Diagnostic Features Foliation Texture Mineralogy Rock Name example Light and dark minerals in layers, effecting a banded appearance Foliated As in granite Quartz, feldspar, mica gneiss 1. Looks like sandstone but grains are fused together ;breaks through original sand grains
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Unformatted text preview: rather around them. Non-foliated Finely to coarsely crystalline Quartz Gneiss 2. Rock cleavage owing to parallel orientation of days and micas Foliated Coarsely crystalline; crinkled micas discernible Calcite or dolomite Schist 3. Rock cleavage owing to parallel orientation of days (in slate) Foliated Very finely crystalline; may exhibit slight sheen but more compact than shale Appearance of clay Slate 4. Sugary sparkle imparted by cleavage of calcite or dolomite crystals Non-foliated Finely to coarsely crystalline Silicates, mica, hornblende, Marble 5. Shiny black; conchoidal fracture Non-foliated Super-fine textured, tar like glossy Metamorphosed plant material Anthracite Coal...
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  • Spring '10
  • METAMORPHIC ROCK IDENTIFICATION, rock cleavage, Specimen number example, Foliated Foliated Finely, Coarsely crystalline

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