Compaction and cementation Melting and solidification Heat and/or pressure metamorphic igneous sedimentary Melting Weathering and erosion Heat and pressure
B Shows deformation & banding due to heat and pressure C Appears glassy D Large intergrown crystal grains A Fragments of rock cemented together
Calcite Magnetite Halite Hematite graphite Talc/ graphite Augite silt olivine pyroxene low extrusive crystalline Color Mineral composition Density Slate Mica Feldspar Garnet Quartz Amphibole Pyroxene limestone marble igneous sedimentary metamorphic Breccia
Sandstone Gas pockets Boulders Granite Rock salt Cleavage hardness metallic obsidian metaconglomerate slate igneous sedimentary schist
Less than cm slate coarse
banding Pyroxene and amphibole garnet Jewelry