A black iceberg has made a ton of fans today after a photo of it was posted on Reddit, it creating quite a stir among online denizens as it went viral within hours of it being published on January 4, 2013. The photo was posted by user Rundboll.
The iceberg stands in sharp contrast to another whitish iceberg in the photo which seems to have been taken during the day.
According to The Canada Encyclopedia, most icebergs are white except along freshly calved ice cliffs, which tend to appear blue.
“Others may appear green, brown or black, or combinations of these colors. These icebergs have usually rolled over, exposing basal ice, or have emerged from below water level. The various colorations are caused by differences in density, air-bubble content and impurities. For example, black ice is of high density and bubble free; dark layers indicate the presence of rock materials derived from the base of the parent glacier. Occasionally, rocks may be found on the original upper surface of the iceberg. As the iceberg melts, these materials precipitate into marine or lake sediments.”