"Minerals & rocks" application describes various minerals, their properties and their formation. This app categorizes and sketches the difference between minerals and rocks, by taking a few examples to describe their formation. This app is educational and can be used as a reference to know important properties such as a mineral’s Hardness, Cleavage, Fracture, Crystal form, and Fluorescence. This app also has an option to pause and play the audio. There is also a quiz section with a set of questions, to review your knowledge on rocks.