<span>Mineral crystals are characterized by having flat and habit surfaces. The most important characteristic of the crystal is that their atoms</span><span> are arranged in a regular, highly ordered way. The faces of the mineral crystals are flat and have specific orientation. We recognize most by their shape, but what truly defines them whether a solid is a crystal or not is the microscopic atomic arrangement. </span>
A fall-arrest system should be worn while climbing a tree or any tall structure. This will enable the person to have a thing to break or slow his fall if he loses his grasp from the trunk of the tree.
