For each month there is traditionally a birthstone.
The birthstone of February is the amethyst.
The word "Amethyst" is coming from the Greek "amethystos", the negative prefix "a" teaming up "methustes" = drunkard, as water poured into a cup purple color made with amethyst appears as with wine, allowing not to get drunk. Therefore, amethyst was considered in ancient times as a talisman protecting drunkenness. Hence, by extrapolating the benefits of amethyst properties on the liver attributed by some ...
Amethyst belongs to the family of quartz (SiO2).
And for Valentine's Day (14 February) you also have a choice of amethyst hearts.