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Classification of stone

Author: mdtv gruppo
Description:
Keywords: , , , , , , online teaching

Content:
Groups:
1. Igneous rocks
2. Sedimentary rocks
3. Metamorphic rocks
4. Derivatives

Objects:
0. Granite
1. Limestone
2. Sandstone
3. Slate
4. Marble
5. Crushed stone
6. Granules
7. Marble Dust
.