ROCK & MINERAL COLLECTION

3. Coarse-grained, multi-colored igneous rock, with quartz and feldspar, formed from slow cooling magma.
4. Combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons.
7. Metamorphic, smooth and polished, this white to multi-colored stone started as limestone, transformed by heat and pressure.
9. Volcanic glass, smooth and black, formed from rapid cooling of felsic lava without crystallization.
11. Grainy, layered sedimentary rock, ranging in color from red to beige, formed by compacted sand over time.
12. Sedimentary rock, smooth and fine-grained, formed from compacted clay and silt, often found in muddy environments.
13. A hard, glassy mineral, often clear or white, with a hexagonal crystal structure made primarily of silicon dioxide.
14. A dark, fine-grained igneous rock, rich in iron and magnesium, formed from rapid cooling lava at Earth’s surface.

1. Sedimentary rock, typically light-colored, made mostly of calcium carbonate, often home to fossils from marine life.
2. Light, porous volcanic rock, formed when gas-rich lava cools rapidly, often floating on water.
3. Soft, slippery mineral, grey to black, a form of carbon used in pencils, with a layered crystal structure.
5. A metamorphic rock with fine layers, dark grey to black, formed from shale under pressure and heat.
6. Rock formation with a hollow center lined with crystals, typically formed in volcanic or sedimentary environments.
8. Pink variety of quartz, prized for its color and crystal structure, composed of silicon dioxide.
10. Preserved remains trapped in sedimentary rock, often ancient and organic, telling tales of past life.