Chairs = common noun; Roll-O-Rocker = proper noun. Harriet threw the stale cucumber sandwich in the trash can and fantasized about a Big Mac dripping with special sauce. Sandwich = common noun; Big Mac = proper noun. Because we like an attentive waiter, we always ask for Simon when we eat at Mama Rizzoli's Pizzeria.
Answer: Reef Sand is live sand when it is on the bottom of the ocean floor, it is here where the reef sand is alive. When the Reef Sand has been out of the seawater for a period of time and exposed to the airborne elements it is considered to be dead sand. (lacking nitrifying bacteria).
Red Sand Beach is partially shielded from the rough open ocean by an offshore reef. The result is a natural sea wall that protects the bay from large waves. Kaihalulu is one of the few red sand beaches in the world. The sand is a deep red-black, which contrasts with the blue water, the black sea wall, and the green ironwood trees. The cindercone behind the beach erodes constantly, which continually enlarges the cove.