The Virgin Rainbow, it was discovered in the opal fields of Coober Pedy by opal miner John Dunstan in 2003.
Magical Effects of the Rainbow Opal
A powerful gem prized by illusionists, alchemists and cosplayers in equal measure, the Rainbow Opal has a number of magical effects, depending on how it used or what spell is focused through
-Illusion Spells are 10% more effective when cast through a Rainbow Opal.
-Illusion Spells last twice as long when cast through a Rainbow Opal
-Can permanently change the colour of one object. That colour then disappears from the opal. The gem can no longer change anything to that colour again.
-Any and all ‘Rainbow’ spells cast through the opal double in all values.
-Will summon one ‘Rainbow Servant’ once per day, without spell costs.