The largest crystals on Earth are found in the Cave of the Crystals in Naica, Mexico. These selenite crystals can reach sizes of up to 39 feet (12 meters) in length and weigh several tons. They formed under unique conditions of high temperature and high mineral concentrations in the cave.
The largest satellite orbiting the Earth is the Moon.
The generic name given to the largest bodies of water on earth is the ocean. There are 5 major oceans on Earth.
The star closest to Earth is the sun. The phrase "... largest to planet Earth ... " is meaningless.
Antarctica.
the moon
K2
Pacific Ocean
An "ocean".
Asia is the largest continent.
Igneous rocks usually contain the most crystals. The longer it takes the magma to cool, the larger the crystals. According to the Earth Science Reference Tables, pegmatite contains the largest crystals.
Antarctica is both the largest and coldest desert on earth.