Dairy Products. Different types of algae are found in common dairy products. For example, carrageenan is a form of algae that is in many products. Yogurt, sour cream, mayonnaise, cheese and whipped cream all are known for possessing this form of algae.
Krypton was one of three noble gases discovered in 1898 by Scottish chemist and physicist Sir William Ramsay (1852-1916) and English chemist Morris William Travers (1872-1961). Ramsay and Travers discovered the gases by allowing liquid air to evaporate.
Krypton is a noble gas. I guess a gas cloud of krypton is made out of krypton. Because it is a noble gas it will not react with anything to make a crystal, but you can freeze it or precipitate it if you get the temperature low enough. Its also a heavy gas, so if you breathe it in, it might make your voice deeper.