Opalescent Coral

Opalescence

Opalescence or play of color is an optical phenomenon associated with the mineraloid gemstone opal, a hydrated silicon dioxide. This effect appears as a milky, translucent glow that changes with the angle of light, often creating a soft, pearly sheen that can display various colors or hues. Opalescence can be seen in materials like certain minerals, glass, and even fluids.

Coral

Corals are colonial marine invertebrates within the subphylum Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton.

Coral (color)

The various tones of the color coral are orange, red and pink representations of the colors of those cnidarians known as precious corals.

opalescent

Adjective

1. Exhibiting a milky iridescence like that of an opal.

coral

Noun

1. Any of many species of marine invertebrates in the class Anthozoa, most of which build hard calcium carbonate skeletons and form colonies, or a colony belonging to one of those species.
2. A hard substance made of the skeletons of these organisms.

Adjective

1. Made of coral.
2. Having the orange-pink color of coral.