Two images of the same Epsom Salt crystal at a magnification of 50x. The image on the left shows what the crystal looks like in unpolarized light. The image on the right was taken using crossed polarizers and a full wave plate.
With and Without
Two images of the same Epsom Salt crystal at a magnification of 50x. The image on the left shows what the crystal looks like in unpolarized light. The image on the right was taken using crossed polarizers and a full wave plate.