Minerals, Metals, and Gemstones of Pennsylvania - HobbyLark
It is a native metal that occurs as nuggets or grains. It is a soft, shiny, and malleable metal with a bright yellowish color and luster. The symbol for gold is Au, and its atomic number is 79. Graphite. Graphite is a mineral that is an allotrope of carbon and the most stable form of carbon under normal conditions. It is steel black to gray in ...