Optical Calcite/Viking Sunstone

Discover the incredible properties of Optical Calcite/Viking Sunstone. This unique gemstone has been utilized for centuries as a navigation tool due to its ability to detect the location of the sun even through thick clouds. With its scientific and objective properties.

Ancient tales of Norse mariners using mysterious sunstones to navigate the ocean when clouds obscured the Sun and stars are more than just legend. Vikings used transparent calcite crystal -- also known as Iceland spar or Optical Calcite -- to fix the true bearing of the Sun, to within a single degree of accuracy.