Coral Quartz

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.

Quartz

Quartz is a hard mineral composed of silica (silicon dioxide). Its atoms are linked in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen atom being shared between two tetrahedra, giving an overall chemical formula of SiO2. Therefore, quartz is classified structurally as a framework silicate mineral and compositionally as an oxide mineral. Quartz is the second most common mineral or mineral group in Earth's lithosphere, comprising about 12% by mass.

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.

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.

quartz

Noun

1. The most abundant mineral on the earth's surface, of chemical composition silicon dioxide, SiO2. It occurs in a variety of forms, both crystalline and amorphous. Found in every environment.
2. Crystal meth: methamphetamine hydrochloride.