- Mineral (Wikipedia)
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid substance with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.
- Mineralogy (opengeology.org)
Minerals are our planet. They form the Earth and the bedrock that we live on, making up all of Earth’s rocks and sediments, and they are important components in soils. So, they literally are the foundations for our lives. Perhaps because they are ubiquitous, most people don’t even notice them or consider that all rock is made of minerals. But, engineers do because building a bridge or other structure on unstable material, or using poor ingredients for construction of all sorts, would lead to disasters. And, farmers care about minerals because healthy soils produce great crops. Petrologists who study rocks of all sorts need to know about minerals. And others who use resources in manufacturing need minerals. So, the world’s people rely on minerals. And, minerals, mineral production, and the study of minerals are absolutely essential to maintain our lifestyles.
- Mineral (Wikipedia)
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid substance with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.