Fluorescent Turquoise

Fluorescence

Fluorescence is one of two kinds of photoluminescence, the emission of light by a substance that has absorbed light or other electromagnetic radiation. When exposed to ultraviolet radiation, many substances will glow (fluoresce) with colored visible light. The color of the light emitted depends on the chemical composition of the substance. Fluorescent materials generally cease to glow nearly immediately when the radiation source stops. This distinguishes them from the other type of light emission, phosphorescence. Phosphorescent materials continue to emit light for some time after the radiation stops. This difference in duration is a result of quantum spin effects.

Turquoise

Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium, with the chemical formula CuAl6(PO4)4(OH)8·4H2O. It is rare and valuable in finer grades and has been prized as a gemstone for millennia due to its hue.

Turquoise (color)

Turquoise is a cyan color, based on the mineral of the same name.

fluorescent

Adjective

1. Of or relating to fluorescence.
2. Exhibiting or produced by fluorescence.

Noun

1. A fluorescent light.

turquoise

Noun

1. A sky-blue, greenish-blue, or greenish-gray semi-precious gemstone.
2. A pale greenish-blue colour, like that of the gemstone.

Adjective

1. Made of turquoise (the gemstone).
2. Having a pale greenish-blue colour.