Chalcedonies include many types of cryptocrystalline ... but with a different arrangement—explaining why diamond is the hardest mineral and graphite (used in pencil lead) is one of the softest.

A new study suggests the iron oxide responsible for the red planet's distinctive hue is ferrihydrite, pointing to the bygone presence of water, an important ingredient for life ...

Your body uses magnesium for many critical functions. Learn which foods contain magnesium and how to get more of it.

This mineral — halite — gets harvested by ... First, we need to look at different types of salt in the industry. Table salt is often made by drilling into underground sea beds, pumping out ...

First and foremost, it’s essential to determine which minerals you need. There are many different types of mineral supplements available, each designed to target specific deficiencies.

Dairy products tend to be rich in magnesium and are one of many people's primary sources of this mineral ... different health benefits and potential side effects. For example, most magnesium types ...