This is bismuth — a natural chemical element that chemically resembles arsenic and antimony. But there’s a catch with this crystal. While bismuth occurs naturally in the Earth’s crust, the striking ...

Beautiful rainbow clouds appear in New Hampshire sky. Sightings leave many puzzled. Updated: 7:09 PM EDT May 19, 2016 ... The crystals then refract the light, ...

To put it in simple terms, there are tiny crystals inside the clouds. The rainbow […] On Friday afternoon, many people across central Indiana spotted what appeared to be a rainbow in cloud form.

The ice crystals that create these beautiful rainbow displays have a special shape, usually plate-shaped in nature causing whatever light that hits it to become bent and spread out into the ...