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Ijen Volcano, Indonesia
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Ijen Volcano, Indonesia

NASA / JPL · 2017-07-14 · photograph (digital archive)

From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.

About this work

West of Gunung Merapi, East Java, Indonesia, is the Ijen volcano, which has a one-kilometer-wide turquoise-colored acidic crater lake. The lake is the site of a labor-intensive sulfur mining operation, in which sulfur-laden baskets are carried by hand from the crater floor. The lake is recognized as the largest highly acidic crater lake in the world, with a pH of 0.5.

NASA Image and Video Library’s own description
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TerraEarthvolcano
Credit lineIjen Volcano, Indonesia. NASA/JPL, 2017-07-14. Public domain. ID: PIA21787.
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