[post_page_title]Sun stone[/post_page_title]
Since we know that Vikings traveled so far and eve discovered some countries, you may be wondering how they were able to navigate so well.
This was due to their use of the sun stone, a stone that has refractive properties that allowed them to examine what direction the sun was coming from even in cloudy skies. While this was once thought to be a myth, historians were able to replicate this process using a calcite rock called Icelandic Spar.
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