Immortal Essence Stone

Immortal Essence Stones are used just like Primeval Stones, but this does not mean that they are formed by multiple Spirit springs. They are actually artificially created by Heavenly Court as ordinary currency or as a replacement for Gu Immortals Immortal Essence.

Appearance
Immortal Stones are glossy, transparent and glittering, just like crystals with the glitter of jade. They are round in shape, look exactly like pearls, and yes, like Primeval Stones they vary in size, as they are as large as the most common pearls literally up to duck egg-sized pearls.

Use
Immortal Essence Stone are used the same way as Primeval Stones, except that the former can be split into halves to pay for lower value good.

Their value is unmatched by Primeval Stones, as not even millions can buy even one immortal essence stone.

The amount Immortal Essence that the Gu Immortal can restore is correlated with the speed and safety of the Gu Immortal cultivation as well as their chances of progressing in their ranks, so if given enough immortal stone, even a bottom layer Gu Immortal can buy enough resources to attract his desired calamity or tribulation or pay a Gu Immortal that cultivates in time path to delay them (which ties directly to the currency aspect).

Trivia
 * There are two types of "stone currency" in the Gu world, the first are the primeval stones used by mortal Gu Masters, and the second are immortal essence stones, commonly used by Gu Immortals. The value of immortal essence stone is infinitely higher than primval stones.
 * In Fang Yuan's previous life, the largest number of immortal essence stones available to him at one time was only over 60 pieces.