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Why black sand beaches have black sand?

closed as off-topic by Ali Awan, Neusser, Hanky Panky, AakashM, David Richerby Apr 30 '18 at 10:43

  • This question does not appear to be about traveling within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.

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    Why the question down votes? There is a reason why sand is coloured differently...although admittedly it’s easy to find through an internet search rather than posting a question here – Traveller Apr 30 '18 at 8:32
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    @Traveller Because this question is not about travelling at all. It's about geology. Answering such questions we can end up with questions "why don't penguins live in Iceland" or "why is the capital of whatever-country called so" – Neusser Apr 30 '18 at 8:44
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    @Neusser Ok, thanks, I get that. Although I think the OP may have English as a second language (or third etc) and therefore might have taken your comment literally, leading to an equally unacceptable follow-up question. In my experience, non native speakers don’t easily recognise veiled sarcasm :-) – Traveller Apr 30 '18 at 9:13
  • @Traveller Okay, I deleted it. – Neusser Apr 30 '18 at 9:15
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    I'm voting to close this question as off-topic because it does not appear to be about traveling within the scope defined in the help center. – AakashM Apr 30 '18 at 9:16
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Black sand is most common on the coasts of volcanic islands (Hawai’i, the Canary Islands, the Aleutians, etc.). Black sand beaches are black because they are composed of volcanic minerals and lava fragments, which are dark-coloured. http://www.sandatlas.org/colors-in-sand/

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