First Quantum Minerals (TSX: FM) reported quarterly earnings of $0.01 per share which missed the analyst consensus estimate of $0.07 by 85.71 percent. This is a 75 percent decrease over earnings of $0.04 per share from the same period last year. The company reported quarterly sales of $1.475 billion which beat the analyst consensus estimate of $1.365 billion by 8.07 percent. This is a 17.44 percent increase over sales of $1.256 billion the same period last year.