The mood ring hit the market 30 years ago. Basically, it is nothing but a ring with centrally located crystals that change color depending on the body temperature.
Owing to the sensitivity of heat, the thermotropic liquid crystals change the orientation and reflect light at different wavelengths. However, when the individual has worn the jewelry piece for a long time, the stone denotes the emotional state of the mind. So, as you scroll ahead you can check out the mood ring color meanings.
Black
When you are keeping the ring inside your wardrobe, the default color is black. However, when the color is black on the finger, then it indicates a negative temperament. You may either be tired after a hectic schedule or are tensed about something when things are not working the way they should be.
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