I stepped through the door and breathed in the crystal air.
The explanation was crystal clear.
The term 'crystal shape' is a noun phrase which functions as a noun as the subject of a sentence or a clause, and as the object of a verb or a preposition.Examples:The crystal shape of the jar gave a sparkle to the tomatoes inside. (subject of the sentence)She preserved tomatoes in jars with a crystal shape. (object of the preposition 'with')
you could say: My friend has a crystal vase in her dining room.
You use like this:Cool you found a purple crystal.
I was galvanized when I broke the crystal bowl.
In the crystal lattice are space which are for molecules, atoms and ions
I was mesmerized by his crystal blue eyes.
The subject of the sentence "Fortunately Crystal and Peter bought plenty of food and soft drinks" is "Crystal and Peter." They are the ones performing the action of buying food and soft drinks.
The Luminescent crystal shone in the bright light.
there are air spaces
My mum saw a pink and green cystal at the cystal store.
The crystal blue swimming pool was a fun place to have our party.