Maddhapara Granite Mining Company Limited in Dinajpur, the country's only underground hard rock mining operation, has ...

“Geologically-speaking, it’s quite hard to make granite without water and plate tectonics, which is why we really don’t see that type of rock on other planets,” said Professor Stephen ...

There are lots of types of rock and each type has different properties and uses. For example, some are strong and hard but others are soft and sandy. Some rocks are harder than others. For example ...