Earth's lower mantle
is composed of magnesium iron silicate.
The lower mantle is 2000 kilometers thick,
so magnesium iron silicate makes up 38 percent
of the Earth's entire volume
leaving it the most common of our minerals
but You,
You are not magnesium iron silicate.
You are painite, our rarest kind of mineral.
You are painite reflecting all that is good and bright in the world.