poor cleavage sentence in Hindi

Examples

1. Sperrylite has a poor cleavage, and its polished surface has a metallic lustre.
2. Sodalite's six directions of poor cleavage may be seen as incipient cracks running through the stone.
3. Zorite has perfect cleavage along the planes { 010 } and { 001 }, while having poor cleavage along the plane { 110 }.
4. Minerals with many cleavages might not break equally well in all of the directions; for example, calcite has good cleavage in three direction, but gypsum has perfect cleavage in one direction, and poor cleavage in two other directions.