Framed Chart of Minerals and Rocks
 Shows the world's most common minerals. This chart has 93 of Earth's most common mineral and rock specimens ordered and classified by their composition (minerals) and how they are formed (rocks). Includes: 40 Minerals, 18 Igneous Rocks, 18 Sedimentary rocks and 17 Metamorphic Rocks. Chart measures 18" x 24" and is wood framed on a sturdy backing. Grades 7 through 12.
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