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Volcano Spews Blue Fire While Sulfur Miners Work Metres Away

Stunning new photos capture the beauty and peril of sulfur mining.
A mountain guide takes a photograph of ignited sulfuric gas, known as blue fire or blue frame, as it rises from the Ijen volcano at night in Banyuwangi, East Java, Indonesia, on Thursday, June 2, 2016. Sulfur isn't an easy material to mine manually, but the environment it's found in can be spectacular: sulfuric gases can combust on contact with air, creating an electric-blue flame. The Ijen volcano is a harsh workplace for the miners who travel there daily, as well as a tourist attraction for adventurous travelers. Photographer: Tomohiro Ohsumi/Bloomberg via Getty Images
Tomohiro Ohsumi/Bloomberg/Getty Images
A mountain guide takes a photograph of ignited sulfuric gas, known as blue fire or blue frame, as it rises from the Ijen volcano at night in Banyuwangi, East Java, Indonesia, on Thursday, June 2, 2016. Sulfur isn't an easy material to mine manually, but the environment it's found in can be spectacular: sulfuric gases can combust on contact with air, creating an electric-blue flame. The Ijen volcano is a harsh workplace for the miners who travel there daily, as well as a tourist attraction for adventurous travelers. Photographer: Tomohiro Ohsumi/Bloomberg via Getty Images

Mining for sulfur is dangerous work.

New photos of Ijen volcano in East Java, Indonesia, show sulfur ― which can combust on contact with air ― erupting into dazzling blue flames as miners work nearby. The images, from photographer Tomohiro Ohsumi, capture both the spectacular beauty and constant peril of one of the world’s last traditional sulfur mines.

Ijen is a “quietly active” volcano that spews sulfur dioxide and other gases into the air. Workers use stone and metal pipes to trap the gases, which condense into a reddish liquid and eventually harden into pure sulfur.

It’s taxing work. Photos show miners carrying blocks of raw sulfur in baskets to processing plants where they’re broken into smaller chunks and purified into a liquid. The processed sulfur is used in a range of industrial processes, from vulcanizing rubber for tires to bleaching sugar. It’s also a key ingredient in fertilizer.

Surrounding the workers is a swirling mist of hydrogen sulphide and sulfur dioxide. The latter is a dangerous compound that, in high concentrations, can burn skin; damage eyes, nose and lungs; and eventually, dissolve teeth. Over the last 40 years, 74 miners at Ijen have died from inhaling noxious fumes, according to the BBC.

Yet workers say they depend on the mine for their livelihoods.

“There are many big mountains but only one gives us the sulfur we need,” a miner named Sulaiman told the BBC in 2011.

You can check out photos of sulfur mines at Ijen below:

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