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COARSE WHITE MARBLE | Marble is a metamorphic rock formed from limestone. The high-pressure, low-heat alteration leads to a massive crystalline ro...

MAGNETITE | Magnetite forms as an accessory mineral from an igneous melt. As it cools, the iron in its atomic structure becomes magnetized GREAT F...

GREEN SLATE | Slate is very lightly metamorphosed and well-foliated. This appearance often makes it difficult to distinguish from its parent rock,...

GREYWACKE | Graywacke is a sedimentary rock composed of large, angular clasts within a fine-grained clay matrix. Formed during underwater avalanch...

GARNET | Garnet comes in a variety of colors & shapes - this specimen is a deep red color. Garnet forms under intense heat and pressure condit...

PUMICE | Pumice is formed from the frothy lava that a volcanic explosion creates. As the frothy lava cools, it hardens as a light weight rock that...

EXPLORE FIELD TESTING TECHNIQUES | A fun way to explore the variety of techniques that geologists use to identify rocks and minerals IDENTIFY ROCK...

12 PACK | Includes twelve streak plates. Great for group activities GREAT FOR GEOLOGY CLASSROOMS | Used to determine a mineral's color in powder f...