- About.com: Rock Identification Tables
 - Offers charts for identifying common types of igneous, sedimentary, and metamorphic rocks using colour, grain size, composition, and hardness as guides. - Earth Science Lab: Igneous Rock Identification
- Includes igneous rock identification chart, information on texture and composition, and pictorial exercise for identifying the rocks.
- Earth Science Lab: Metamorphic Rock Identification
- Includes metamorphic rock identification chart, information on texture, foliation, non-foliation, and pictorial exercise for identifying the rocks.
- GeoMan's Rock Identification
- Offers chart to aid in the identification of igneous, sedimentary, and metamorphic rocks using texture and colour as guides.
- Identification of Rocks & Minerals
- Details the difference of rocks and minerals, and tips on identification using colour, luster, weight, and hardness as guides.
- Identifying Rocks
- Offers a flowchart that will aid in the identification of common rocks.
- Igneous Rock Identification: Nature's Fiery Cauldron
- One of the three principal classes of rocks, they are crystalline or glassy rocks formed by the cooling and solidification of molten magma.
- Igneous, Sedimentary & Metamorphic Rock Info
- Offers an introduction to intrusive and extrusive volcanic rocks, sedimentary processes, and metamorphic forces.
- Key to the Identification of Basic Sedimentary Rocks
- Flowchart of sedimentary rock types, broken down by those that react or do not react with acid and those that scratch glass or are softer than glass.
- Metamorphic Rock Identification: What Lies Beneath?
- Learn about the textures and classification of rocks resulting from mineralogical and structural adjustments of existing solid rocks.
- Rock Identification Key, The
- Geological overview of the three rock types, the rock cycle, and what minerals form rocks. Includes a key that asks a series of questions that will lead to the identification of common rocks.
- Rocky the Rock Hound
- Offers hints on rock collection safety, lesson plans, rock identification quizzes, and information on learning how igneous, metamorphic, and sedimentary rocks are formed.
- Sedimentary Rock Identification
- Details characteristics of sedimentary rock and describes the two types: clastic and chemical.
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