👉 Incrustations are small, impermeable structures that can be found in various environments. They are typically composed of tiny particles or bits of matter such as sand, gravel, or other materials that have been deposited on a surface. These particles may form by natural processes such as wind erosion, river flow, or the movement of minerals and rocks over time. Incrustations can occur in various forms, including:
1.
Fossil Crystals
: These are small crystals formed from ancient