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| Description: Metamorphic textures Foliated texture Minerals are in a parallel alignment Minerals are perpendicular to the compressional force Nonfoliated texture Contain equidimensional crystals Resembles a coarse-grained igneous rock Common metamorphic rocks Foliated rocks Slate Fine-grained Splits easily Schist Strongly foliated “Platy” Types based on composition (e.g., mica schist) Common metamorphic rocks Foliated rocks Gneiss Strong segregation of silicate minerals “Banded” texture Nonfoliated rocks Marble Parent rock is limestone Large, interlocking calcite crystals Common metamorphic rocks Nonfoliated rocks Marble Used as a building stone Variety of colors Quartzite Parent rock – quartz sandstone Quartz grains are fused Picture Stats: Views: 400 Filesize: 209.09kB Height: 922 Width: 692 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39391 |