Peridot, Arizona
Peridot ( "Blue Rock") is an unincorporated community and census-designated place (CDP) in Gila and Graham counties in the U.S. state of Arizona. The population was 1,350 at the 2010 census. Peridot is named for the mineral peridot, found in basalt flows nearby. Geography Peridot is located in southeastern Gila County and northwestern Graham County at (33.303884, -110.455046), within the San Carlos Apache Indian Reservation. U.S. Route 70 passes through the community, leading west to Globe, the Gila County seat, and southeast to Safford, the Graham County seat. The San Carlos River, a tributary of the Gila River, flows southward through the CDP and forms the county boundary. Coolidge Dam, forming San Carlos Lake on the Gila and San Carlos rivers, is to the south. According to the United States Census Bureau, the Peridot CDP has a total area of , all land. Demographics As of the census of 2000, there were 1,266 people, 307 households, and 261 families residing in the CDP. The population density was . There were 346 housing units at an average density of . The racial makeup of the CDP was 98.0% Native American, 1.4% White, and 0.6% from two or more races. 2.6% of