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'Fire rainbows' are a rare phenomenon that only occur when the Sun is higher than 58° above the horizon and its light passes through cirrus clouds made of ice crystals. At the right alignment, the ice crystals act as a prism, and refract the light to look like a rainbow.

This breathtaking, colorsplash of a rare opal-type gemstone is found in the US. As with amber & pearl, it is a biogenic gemstone, and given gemstone status in 1981.

Calcite and pyrite Brushy Creek Mine, Reynolds Co., Missouri.

NATURAL STONE: Colorado eye agate kinda looks like the eye of Sauron

Osmium twinning / Osmium is a hard, brittle, blue-gray or blue-black transition metal in the platinum family & is the densest naturally occurring element, with a density of (slightly greater than that of iridium & twice that of lead).

This is a rare meteorological phenomenon called a skypunch. When people see these, they think it’s the end of the world. Ice crystals form above the high-altitude cirro-cumulo-stratus clouds, then fall downward, punching a hole in the cloud cover. Freakishly weird!

triple+rainbow | Triple Rainbow