Ever See Rainbows Through Your Crystals That Reflect On Your Wall?

In the sky these breathtaking displays of the visible spectrum can stop you in your tracks- and invite you to recall the rainbow lore we all know.  Symbols of hope, luck, love from the heavens, and so on.

Light waves bend (refract), bounce back (reflect) and spread out (disperse) as they speed up or slow down while traveling from one medium to another (so long as each medium has a different density). Like when light waves travel from air to liquid rain drops in the sky.

Calcite and fluorite also iridesce- projecting rainbow-like reflected color patterns.

When white light waves transmit through an interface and spread out (dispersion)- the visible light spectrum breaks out into its ROYGBIV components and our eyes see rainbows!