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scientistmary:

Striped icebergs are quite a view. They can form a couple different ways. Blue stripes occur when layers of ice melt and refreeze so fast that no bubbles — which scatter light to give icebergs their white appearance — are created. If the water that freezes is rich in algae, the bands may appear green. Black, brown, and yellow striations are created by sediments picked up by a glacier as it runs down a mountain into the ocean.

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