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Education
Gemstone Igneous Petrology Metallic Deposits Metamorphic Petrology Meteorites Minerals Mining Non-Metallic Deposits Organizations Publications Rock and Mineral Localities Rockhounding Sedimentary Petrology Shopping Stone Tools
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high-resolution pictures of rocks and minerals, taken from personal collections, as well as the Calvin College Geology Department, Michigan, USA.
USGS information on collecting rocks.
Arts / Crafts / Jewelry / Gemstones |
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