ROCKS

IGNEOUS ROCKS

• Basalt - fined grained and formed extrusively
• Granite - course grained and formed intrusively
• Obsidian - glassy and formed extrusively

BASALT

GRANITE

OBSIDIAN

CONGLOMERATE

SHALE

ROCKSALT

LIMESTONE

SANDSTONE

SCHIST

• Slate is the parent rock of schist

GNEISS

• Granite is the parent rock of gneiss

QUARTZITE

• Sandstone is the parent rock of quartzite

SLATE

• Slate is the parent rock of schist
• Shale is the parent rock of slate

MARBLE

• Limestone is the parent rock to marble