The video tutorial covers various classes of minerals, focusing on oxyanions such as carbonates, sulfates, and phosphates. It explains the characteristics and significance of each class, including their chemical compositions and geological occurrences. The tutorial also discusses mineraloids, which are naturally occurring substances that lack a crystalline structure. The importance of these minerals in geological processes and their applications in construction and biology are highlighted.

What are the four classes of minerals mentioned in the tutorial?

Describe the characteristics of carbonates as minerals.

What is the most common carbonate mineral and its significance?

Explain the process of how stalactites and stalagmites are formed.

What are sulfates and provide an example of a common sulfate mineral?

Discuss the importance of phosphates in geology.

What distinguishes mineraloids from true minerals?