Amethyst is a transparent purple quartz. Origin of name from the Greek -amethystos- "not drunken". Amethyst was considered to be a strong antidote against drunkenness. Greek legend tells the story of a maiden Amethystos who was pursued a drunken god called Dionysus. She prayed to the goddess Artemis to remain chaste. The goddess granted her prayer, transforming her into a white stone. Filled with remorse Dionysus cried tears of wine over the stone turning it purple.

Colour : The colour range varies from pale lilac to deep purple.
Hardness : 7

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Amethyst is a powerhouse stone with many benefits. It vibrates at a high frequency, creating a bubble of spiritual protection against negative energy. Amethyst awakens higher consciousness and facilitates meditation and intuition. It can help you make wiser decisions free of emotional confusion. 
Amethyst stones help you be the best version of yourself. It can help you drop unhelpful habits and shift into higher states of consciousness. These habits might be physical or mental, including negative thoughts.