quartz

"The chemistry experiment showed that carbon dioxide, a gas we exhale, contains two oxygen atoms for every carbon atom. "

"The smooth surface of the kitchen table was perfect for setting the dinner plates. "

"The noisy environment of the school cafeteria made it difficult to concentrate on my homework. "

"The enormous pile of spaghetti landed on the floor in an amorphous heap."

"The geologist studied the rocks in the park. "

"The computer chip contains silicon, a key element for its operation. "

"The geologist found a beautiful mineral specimen in the rock collection. "

"The jeweler carefully inspected each crystalline before setting it in the ring. "

"[W]ith their magical words they [poets] bring forth to our eyesight the abundant images and beauties of creation. — Leigh Hunt, On the Realities of Imagination"

"Hey, beautiful!"

"The composition of the band's new song involved several different instruments. "

"The scientist studied the chemical composition of the soil sample. "