Lignite coal and mineral oil are the minerals found in Prairies.

Prairies are vast, flat grasslands that are found in the central part of North America. They cover a significant portion of the United States, particularly in the Midwest, as well as parts of Canada. These regions have a unique geology that has resulted in the presence of certain minerals.

Explanation:
1. Lignite Coal:
Lignite coal is a type of coal that is formed from compressed peat. It is the lowest rank of coal and is often referred to as brown coal. Prairies have extensive deposits of lignite coal, which is primarily used as a fuel for electricity generation and industrial processes. The coal deposits in the Prairies were formed millions of years ago from the accumulation of plant material in swampy areas.

2. Mineral Oil:
Mineral oil, also known as petroleum, is another important mineral found in the Prairies. It is a naturally occurring liquid that is extracted from underground reservoirs. The Prairies have significant reserves of oil, particularly in the Alberta region of Canada. Oil extraction and production are major industries in this area, contributing to the economic development of the region.

Conclusion:
In conclusion, the minerals found in Prairies are lignite coal and mineral oil. These resources have played a significant role in the development of the region's economy and energy sector. The presence of these minerals has attracted industries and investment, contributing to the growth and prosperity of the Prairies.