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 5 - 5.5, D 3.5 - 4