The Thumb Stones owe their name to their use as a massage stone for the thumb. An ideal hand-flatterer that can be easily carried in the pocket due to its flat shape. Carried in the pocket, it stimulates - even unconsciously - to take in hand.
The Thumb Stones made of lapis lazuli are about 3.8 x 5.0cm in size.
The Thumb Stones are also called Worry Stone. This form of the hand charm is taken in stressful situations with pleasure in the hand to play around with it and to become so a little more calm.
The name Lapis Lazuli is derived from the Latin words "lapis" (stone) and lazulum (blue). Different spellings such as lapis lazuli, lapis lazuli or lapis lazuli are not correct. Due to the long fame of lapis lazuli, there are numerous synonyms. These include azure d'acre, azurum ultramarinum, bleu d'azure, lapis lazuli ultramarine, lazure stone/lazure stone, lazurium, oltremare, oriental blue, outremer lapis, pierre d'azure, ultramarine genuine, ultramarine ino/verdadero, ultramarine natural scythium. Lapis Lazuli was used in ancient Egypt in the death masks of pharaohs; therefore, the dark blue stone is also called pharaoh stone.