Kiteytymämuodot

Kiteytymämuodot refer to the macroscopic shapes and habits that crystals exhibit. These forms are a direct result of the internal atomic arrangement of the mineral, as well as the conditions under which the crystal grew. While the internal structure of a mineral is fixed, the external shape can vary depending on factors such as the rate of growth, the presence of impurities, and the space available during crystallization.

Common kiteytymämuodot include cubic (like halite), prismatic (like quartz), tabular (like mica), and acicular (needle-like). Some crystals may display a combination of these forms, or develop irregular shapes if their growth is obstructed. Understanding kiteytymämuodot is crucial in mineralogy for identification purposes and for inferring the geological environment in which a mineral formed. For example, well-developed crystals often indicate growth in an open cavity, whereas stubby or anhedral crystals suggest growth in a confined space. The study of these external forms complements the analysis of internal crystal structure, providing a more complete picture of a mineral's characteristics and history.