Here's a breakdown:
* Minerals: These are naturally occurring, solid substances with a definite chemical composition and a characteristic crystal structure. They are the building blocks of most rocks. Examples include quartz, feldspar, mica, and calcite.
* Rock fragments: These are pieces of other rocks that have been broken down and incorporated into a new rock. They can be any size, from microscopic to boulders.
The specific types of minerals or rock fragments present in a rock determine its properties and classification.
