1. METALLIC luster, WHITE color

A. Does not readily leave mark on paper but can be scratched by

ordinary pocket knife

Native silver Shiny silver Silver-white 2½-3

white, unless color that

tarnished tarnishes to

gray, black, or

yellowish brown;

heavy; can be

flattened when

hit with hammer

Texas Rocks and Minerals: An Amateur's Guide · 第 56 / 130 题