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Mood Rings contain thermotropic liquid crystals inside the stone or the band of the mood ring. These liquid crystals are able to show different colors at different temperatures. The liquid crystals in modern mood jewelry are usually made from a flat strip of liquid crystals with a protective coating.
The most common color for a mood ring to turn is between green and blue. Generally the mood ring will be a darkish color when coldâ¦.. and as the temperature of your skin heats up the ring you will see the mood ring changing color. The color of the mood ring will stabilise with the current temperature of your skin.