American actress Joey King in the second decade of May 2024 shares a silly selfie sipping a cocktail. (Photo by joeyking/Instagram)

Cuban-American singer-songwriter Camila Cabello posts a silly selfie in Miami on June 13, 2022. (Photo by camila_cabello/Instagram)

American rapper Doja Cat shares a silly selfie on her gram on October 23, 2024. (Photo by dojacat/Instagram)

American actress Eva Longoria and English model and actress Cara Delevingne share a silly snap in the last decade of September 2024. (Photo by evalongoria/Instagram)

The mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulfide with the formula FeS2. This mineral's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of fool's gold. The color has also led to the nicknames brass, brazzle, and Brazil, primarily used to refer to pyrite found in coal.
In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in crystals and minerals.

Pretty Girls, Ugly Faces is a photo fad in which girls take pictures of themselves while posing in an unflattering manner, making a silly face or performing a physically strenuous activity.

Actors, clowns and mime artists celebrate “Humor Day” in St Petersburg on April 1, 2022. April 1 is also referred to as “April Fool’s Day” and is a time for playing pranks in the country. (Photo by Anatoly Maltsev/European Press Photo Agency)