All states require that casinos have a set of chips in reserve with alternate markings,[ citation needed ] though they may not be required to have exactly the same roulette vitrine of reserve chips as they do on the floor.
It also symbolized the sea, which was called the "Very Green. On a traditional color wheel, based on subtractive color, the complementary color to green is considered to be red.
The tokens are interchangeable with money at the casino. They also used less expensive green earth pigment, or mixed yellow ochre and blue azurite. In addition, with the exception of Nevada, casinos are not permitted to honor another casino's chips.
Palm Gaming is even manufacturing custom made molds for their ceramic gaming chips- adding yet another high level of security to its gaming chip.
Most casinos using receipts have automated machines at which customers may redeem receipts, eliminating the need for coin counting windows and decreasing labor costs. Tokens are employed for several reasons. Aristotle considered that green was located midway between black, symbolizing the earth, and white, symbolizing water.
Tombs also often contained small green amulets in the shape of scarab beetles made of malachite, which would protect and give vigor to the deceased. In certain casinos, such as the Wynn and Encore Casinos in Las Vegas, chips are embedded with RFID tags to help casinos keep better track of them, determine gamblers' average bet sizes, and to make them harder for counterfeiters to reproduce.
The surface pink has faded, making the faces look green today. In casinos, uniform chip colors and sizes are sometimes specified by the local gaming control board for consistency. InFrench Quadrille sets contained a number of different counters, known as jetons, fiches and mils.
At least some percentage of the chips is of an earthen material such as sand, chalk, and clay similar to that found in cat litter. They generally have no value outside of the casino, but certain businesses such as taxis or waiters—especially for tips in gambling towns may honor them informally.
For example, regulations in New Jersey green chip in casino and Illinois  specify similar uniform colors. Modern clay chips are a composition of materials more durable than clay alone. Widely thought to have been due to copper because copper compounds often have blue and green colors, the blue-green color is likely to be derived from small quantities of lead and water in the feldspar.
Casinos often use gaming plaques for these denominations: Eye color There is no green green chip in casino in green eyes; like the color of blue eyes, it is an optical illusion; its appearance is caused by the combination of an amber or light brown pigmentation of the stromagiven by a low or moderate concentration of melaninwith the blue tone imparted by the Rayleigh scattering of the reflected light.
Most chips were white, red, blue, and yellow, but they could be made in almost any color desired. Green dyes were made out of the fernplantainbuckthorn berries, the juice of nettles and of leeksthe digitalis plant, the broom plant, the leaves of the fraxinusor ash tree, and the bark of the alder tree, but they rapidly faded or changed color.
The paintings of Constable romanticized the vivid green landscapes of England. A standard piece set of Plastic Injection chips often sold as "clay composite" chips. Newer designs in home chips include three-color designs where a three-step molding process creates a chip with unique base, secondary, and detail colors.