Both igneous and sedimentary rocks can change into metamorphic rocks.

When rock is subjected to the extreme temperatures and pressures that are found deep in the Earth, it changes form. As a result, the same constituents that are found on the Earth's surface are transformed into new types of rock. These rocks are uncut diamonds, and they are made from carbon, which is a common element found in rocks. When they are cut, they will command a high price. What makes them expensive?

Two important monuments of the Mughal period are shown below, find out which rocks were used to build them.

Find ten names of minerals hidden in the puzzle. They can be backwards, forwards, up, down or diagonal. Write the name you have found near the mineral it represents.