The results confirm that monazite crystals can be used to identify and date rocks that have been altered by hydrothermal events. Not only do they show that the radioactive clocks of these ...

If your rock is a single mineral, it may be an obvious crystal or look more worn and rounded. For example, when a quartz crystal is weathered, it turns into a milky to clear rounded crystal.

The results confirm that monazite crystals can be used to identify and date rocks that have been altered by hydrothermal events. Not only do they show that the radioactive clocks of these ...