Striation (geology)

In structural geology, striations are linear furrows, or linear marks, generated from fault movement.

Striations can also be caused by underwater landslides.

Striations can also be a growth pattern that looks like a set of hairline grooves, seen on crystal faces of certain minerals.

Examples of minerals that can show growth striations include pyrite, feldspar, quartz, tourmaline, chalcocite and sphalerite.

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