Minerals Quartz K-Feldspar Staurolite Chlorite Kaolinite Garnet Muscovite Kyanite Talc Sillimanite Amphibole Andalusite Calcite Biotite Serpentine Graphite Pyrite Rocks Gneiss Slate Phyllite Schist Migmatite Hornfels Quartzite Marble Serpentinite Amphibolite Textures Porphyroblastic Porphyroclastic Coarse-grained Medium-grained Fine-grained Foliated Lineated Porphyroblast Porphyroclast Note the flashy shiny surface and the overall grain size and mineral compositio Note the sparkly flashy mineral surface and the larger mineral grains Note the overall color, bands of color and minerals on close-up.