From Stephen R. Donaldson's 6th book in the Chronicles of Thomas Covenant the Unbeliever Series.
Wild Magic, graven in every rock
Contained for white gold to unleash or control.
Gold, rare metal, not born of the Land.
Nor ruled, limited, subdued by the Law, with which the Land was created.
And white, White Gold, because white is the hue of bone, structure of flesh,
Discipline of life.
A good series, unlike any other I've read.
My and my wife's white gold wedding bands.
Best quote from my favorite character in the second Chronicles (and he uttered very few words):
"It is not death. It is purpose. We will redeem the Earth from corruption." Vain--Demondim-spawn, created by the Ur-viles.