Stringer ore

Part of Hall of Planet Earth.

AMNH/R.Mickens

Location

Floor 1

This rock contains brassy veins of chalcopyrite (the yellow copper-iron sulfide mineral) in dark metamorphosed volcanic rocks. The chalcopyrite-rich stringers, or narrow veins, represent fractures in the rock through which hot, metal-bearing waters once flowed.

Provided by Falconbridge Limited, Timmins, Ontario, Canada