Granite rock

Learn more about the major types of igneous rock, which includes plutonic, intrusive, and extrusive igneous rocks.

Difference Between Basalt and Granite

Granodiorite

Porphyritic granite sample approximately 1" (3cm) in size Large crystals in a variety of shapes and colors make this felsic plutonic rock ideal for lessons in mineral identification and bulk rock chemistry Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements Great for comparing cooling rates between samples with differently-sized crystals Specimen comes in clear labeled and barcoded bag for ideal storage

Red Granite

Granite is the most widely known igneous rock. It is an intrusive rock with visible grains of feldspar, quartz, mica, and amphibole minerals. It is durable and widely used in construction and architecture.

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Want to impress your friend with your rock knowledge? Here are 30 types of rocks that you ought to know to get you started.

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