The California spiny lobster (Panulirus interruptus) is a species of spiny lobster found in the eastern Pacific Ocean from Monterey Bay, California to the Gulf of Tehuantepec, Mexico.
The word gypsum is derived from the Greek word Î³ÏÏÎ¿Ï (gypsos), plaster. Because the quarries of the Montmartre district of Paris have long furnished burnt gypsum (calcined gypsum) used for various purposes, this dehydrated gypsum became known as plaster of Paris.
What is Gypsum? Chemically known as âcalcium sulfate dihydrate,â gypsum contains calcium, sulfur bound to oxygen, and water. Gypsum is an abundant mineral and takes forms including alabasterâa material used in decoration and construction as far back as ancient Egypt. The White Sands National Monument in New Mexico is the worldâs largest gypsum dunefield.