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Geography > Rock Texture > Flashcards

Rock Texture Flashcards

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1
Q

What is Vesicular

A

When gasses and other volatile components erupt from the magma creating the “holey” look

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2
Q

What is Porphyritic

A

Large crystals are SET in a finer grained or glassy material

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3
Q

What is Pyroclastic

A

A MIXTURE of rock fragments / pumice / volcanic ash

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4
Q

What is Aphanitic

A

Fine grained rock where you can see crystals with a magnifying glass

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5
Q

What is glassy

A

Looks like glass BUT is formed by RAPID cooling of lava

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6
Q

What is Phaneritic

A

Mineral grains easily visible

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Geography (5 decks)

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