1. Name _______________________
3 perfect cleavages 90o, silver gray, H 2.5, density D 7.6
Black, gray, or greenish black streak
Magnetic, black to dark gray H 6, D 5.2
Steel gray, soft marks paper, H 1, D 2
Metallic Luster
Golden Yellow tarnish purple, H 4 D 4.3
Brass Yellow masses or cubic crystals, striated facets on crystals common H 6 D 5, “fools gold”, NO ACID
Brown to reddish-brown streak
Steel gray, red to red brown streak, H 5 – 6 D 5, uneven fracture
Yellow-brown streak
Yellow brown or black, H , D