Geology Lab

Types of Rocks:

• Igneous: rock formed through the cooling and solidification of magma or lava. (usually dark color)
• Examples: Basalt, Granite, Diorite, Pumice 
• Granite 

Granite

• Diorite

Diorite

• Metamorphic: the transformation of an existing rock type (protolith).
• Examples: Coal, Gneiss
• Coal

Coal

• Gneiss

Gneiss

• Sedimentary: type of rock that is formed by sedimentation of material on the Earth's surface and within bodies of water.
• Examples: Obsidian, Slate, Dolomite, Aragonite, Coquina, Limestone
• Coquina

Coquina

• Obsidian



Obsidian 

• Minerals: 
• Examples: Amethyst, Quartz, Feldspar, Hornblende, Halite, Flint