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BASALTIC – DENSE, DARKCOLORED IGNEOUS ROCK FORMED FROM MAGMA CEMENTATION – WHEN SEDIMENTS ARE GLUED “CEMENTED” TOGETHER CLEAVAGE – PHYSICAL PROPERTY OF SOME MINERALS THAT MAKES THEM BREAK ALONG SMOOTH, FLAT SURFACES COLOR – THE HUE, SHADE, OR PIGMENT OF A MINERAL COMPACTION – WHEN SEDIMENTARY ROCKS ARE COMPRESSED BY THE LAYERS ABOVE THEM EXTRUSIVE – FINE-GRAINED IGNEOUS ROCK THAT FORMS WHEN MAGMA COOLS AT OR NEAR EARTH’S SURFACE FOLIATED – METAMORPHIC ROCK WHICH ARE FOLDED AND FLATTENED INTO PARALLEL LAYERS FRACTURE – PHYSICAL PROPERTY OF MINERALS THAT BREAK WITH UNEVEN, ROUGH, OR JAGGED SURFACES GRANITIC – LIGHT-COLORED SILICA-RICH IGNEOUS ROCK (LESS DENSE THAN BASALTIC) HARDNESS – MEASURE OF HOW EASILY A MINERAL CAN BE SCRATCHED. IGNEOUS – ROCK FORMED WHEN MAGMA OR LAVA COOLS AND HARDENS INTRUSIVE – IGNEOUS ROCK WITH LARGE CRYSTALS FORMED WHEN MAGMA COOLS BELOW EARTH’S SURFACE LAVA – MOLTEN ROCK THAT FLOWS FROM VOLCANOES ONTO EARTH’S SURFACE LUSTER – THE WAY A MINERAL REFLECTS LIGHT (METALLIC OR NON-METALLIC) METAMORPHIC – FORMS FROM HEAT & PRESSURE (CHANGES A ROCK’S FORM &/OR COMPOSITION) MINERALS – NATURALLY OCCURRING, INORGANIC SOLID W/DEFINITE CHEMICAL COMPOSITION MOH – MOH’S SCALE IS USED TO MEASURE THE HARDNESS OF A MINERAL NONFOLIATED – METAMORPHIC ROCK WHERE GRAINS ARE REARRANGED BUT DON’T FORM LAYERS ROCK – MIXTURE OF MINERALS, ROCK FRAGMENTS, OR ORGANIC MATTER ROCK CYCLE – DESCRIBES HOW ROCKS CHANGE SLOWLY FROM ONE TYPE TO ANOTHER SEDIMENTARY – FORMS WHEN SEDIMENTS ARE COMPACTED OR CEMENTED TOGETHER INTO LAYERS SEDIMENTS – LOOSE ROCK FRAGMENTS, MINERAL GRAINS, AND ONCE-LIVING PLANTS & ANIMALS THAT HAVE BEEN ERODED STREAK – COLOR OF A MINERAL IN ITS POWDERED FORM