The Tetragonal Crystal System is one of the seven crystal systems used in mineralogy to classify minerals based on crystal symmetry and geometry. It resembles the cubic (isometric) system but differs because one crystal axis is longer or shorter than the other two....
The Isometric Crystal System, also known as the Cubic Crystal System, is the most symmetrical of the seven crystal systems. Minerals in this system have three crystal axes of equal length that intersect at right angles. Because of its high symmetry, the isometric...
Every mineral crystal grows according to a specific geometric pattern. These patterns are grouped into seven crystal systems, which form the foundation of crystallography and mineral classification. Crystal systems describe: crystal symmetry axis lengths crystal...
The Mohs Hardness Scale is one of the most widely used systems for identifying minerals. Developed by German mineralogist Friedrich Mohs in 1812, the scale measures a mineral’s resistance to scratching. Instead of using complicated laboratory equipment,...
Hardness is one of the most important physical properties used in mineral identification. It measures a mineral’s resistance to scratching and helps geologists distinguish between minerals that may otherwise look similar. The most widely used system for...
Transparency is an important optical property used in mineral identification. It describes how much light can pass through a mineral specimen. Some minerals allow light to pass through completely, while others block light entirely. By observing transparency,...
