Citrine derives its name from the Greek Citron, as the gemstone colour was very similar to the citrus fruit.
It is well know that citrine is a prosperity and abundance gemstone, however it is less well known that it has the ability to soothe fears and anxiety, allowing one to accept all that's good that is coming into ones life.
Sardonyx is a mixture of Sard and Onyx gemstones. Sard has been used since the bronze age, originating from the Turkish city of Sardis, and are similar to Carnelian is a type of chalcedony (a variety of quartz), but tend to be a darker orange in colour.
Sardonyx is a highly protective gemstone, that increases ones happiness, confidence and optimism.
Carnelian derives it's name from the latin Carne which means flesh, as the gemstones are typically flesh coloured, but they can range in colour from dark orange to pink, and are part of the chalecedony, a variety of quartz, family.
It was once thought that carnelian is a gemstone only for the nobility, so much so that the upper classes of society were often buried with it.