Peanut butter is an excellent source of nutrition. Required to contain at least 90 percent peanuts, it includes more than 30 vitamins and minerals. Peanut butter contains no cholesterol or trans fats, according to the National Peanut Board.
Quartz and calcite are abundant minerals in Washington State. Calcite is a very common mineral that appears in almost every color possible. Calcite is made up of calcium carbonate and is very brittle. Calcite sometimes contains iron, magnesium and zinc.
The Lake Superior Agate is found in several Midwestern states, especially Wisconsin, Michigan, and Minnesota, where is was selected as the official state gemstone. These agates formed in volcanic rock billions of years old, and often have cracking due to being transported by glaciers over long distances.