These are sand from near the Great Lakes, and you can see that it's filled with minerals like pink garnet and green epidote, all kinds of amazing stuff, and if you look at different sands from different places, every single beach, every single place you look at sand, it's different.
Es arena de un lugar cercano a los grandes lagos y puede ver que contiene minerales como granate rosa y epidota verde, todas clases de cosas asombrosas, y si mira la arena de diferentes lugares, cada playa, cada lugar en el que mire la arena, es diferente.