* Halite (NaCl) - commonly known as table salt
* Galena (PbS) - a lead sulfide mineral
* Pyrite (FeS2) - also known as "fool's gold"
* Fluorite (CaF2) - known for its beautiful fluorescence
* Diamond (C) - the hardest known natural mineral
* Spinel (MgAl2O4) - a gemstone that can be red, blue, green, or other colors
The isometric crystal system is characterized by three equal axes that intersect at right angles. This leads to crystals with shapes like cubes, octahedrons, dodecahedrons, and combinations of these shapes.
