How to clean it
Warm soapy water only. Keep out of direct sunlight, which fades the colour permanently.
Pale lilac to deep purple
The birthstone for February.
Amethyst fades in sunlight. Heat it and it turns yellow — most commercial citrine is heat-treated amethyst.
Named from the Greek amethystos, "not intoxicated" — Greeks carved drinking cups from it.
Practical
Warm soapy water only. Keep out of direct sunlight, which fades the colour permanently.
The convincing fakes are synthetic amethyst, chemically identical and detectable only by lab. Glass is easier: look for bubbles and unnaturally even colour. Real amethyst usually shows colour zoning.
One general rule covers most mistakes: never store stones loose together. Diamond at 10 on the Mohs scale scratches everything else you own, and it does not need much contact to do it.
Matches quartz, so ordinary dust will not scratch it. Fine for rings, though decades of wear will show at the edges.
Amethyst is traditionally associated with clear thinking, restraint and calm; the classic stone of sobriety. In chakra systems it is placed at the Third Eye, Crown, and in elemental correspondence it is assigned to Air.
These are cultural associations recorded across various traditions, not claims about physical effects. The composition and hardness above are measurable; this paragraph is folklore, and worth reading as such.
Silicon dioxide (SiO₂) — quartz coloured by iron and natural irradiation, crystallising in the trigonal system.
February.
Brazil, Uruguay, Zambia, Russia, South Korea.
Warm soapy water only. Keep out of direct sunlight, which fades the colour permanently.
The convincing fakes are synthetic amethyst, chemically identical and detectable only by lab. Glass is easier: look for bubbles and unnaturally even colour. Real amethyst usually shows colour zoning.
At 7 on the Mohs scale, yes — it resists everyday scratching.