The phrase "various minerals" means different types of natural substances found in the earth that are valuable and have different properties. Full definition
They are a good source of various minerals such as calcium, iron, magnesium, phosphorus, potassium, sodium, zinc, copper, and manganese. (wellnesswithtaryn.com)
I invested in various mineral stocks that never went anywhere. (remonline.com)
It also contains Vitamin E, K and various minerals such as iron. (fitbodyhq.com)