PHOTO LIBRARY GEOLOGY PARKS INDIANS ISLANDS PLANTS ANIMALS ROCKS CLASSIFICATION CHART IGNEOUS ROCKS SEDIMENTARY METAMORPHIC ROCKS ROCK PROPERTY IGNEOUS ROCK IN THE MAKING LAVA DOWN LAVA CHANNEL VENTS THE NORTHEAST RIFT ZONE MAUNA LOA VOLCANO TERM IGNEOUS COMES LATIN MEANING USED TO DESCRIBE MATERIAL THE EARTH MAGMA CRUST THE SURFACE COOL HARDEN EXTRUSIVE CLASSIFIED TRICK HELP KIDS REMEMBER THINK INSIDE COME FROM DEEP IN EARTH ACTS CRYSTALS MINERALS TIME TO GROW THE MOLECULES ARRANGE THEMSELVES CRYSTAL SEEN WITH THE NAKED EYE COMMON EXAMPLE INTRUSIVE IGNEOUS ROCK PAHOEHOE LAVA FIELD EXPOSED WATER CAUSES SOLIDIFYING QUICKLY MOLECULES DO NOT EXTRUSIVE ROCKS MAGNIFICATION OBSIDIAN LACK CRYSTAL STRUCTURE VOLCANIC GLASS PUMICE JUST LIKE EXCEPT TINY TEXTURE CATEGORIES OF CHEMICAL COMPOSITION THE WORD NOTHING TO DO THE ROCK FEATURE GRAIN SIZE SIZE MINERAL GRANITE VISIBLE NAKED FINE VERY SMALL IDENTIFIABLE OPTIC TRAPPED BUBBLES LOOKING GEOLOGISTS LOOK ESTIMATE CHEMICAL MAKEUP SILICA MOST ABUNDANT ELEMENTS EARTH THE CHIEF COMPONENT FELSIC GRAY PINK NUMBER IRON MAFIC DARK GRAY SOMETIMES CLASSIFY PROPORTION LIGHT DARK BROKEN INFORMATION CHEMICAL HIGH CONTENT DARKER LIGHTER ANDESITE DIORITE BASALT GABBRO RIDGES THE SEA ULTRAMAFIC OLIVINE LEND GREEN SHADES RARE COLORS ULTRAMAFIC ROCK PERIDOTITE CONTACT COPYRIGHT DISCLAIMER SEARCH CALVIN ROSANNA ALL RIGHTS RESERVED