Mohs Hardness 7
Mined From Russia, Brazil, India, Namibia, Sri Lanka, USA,
Typical Cutting Style Cabochon and Faceted or Bead
The colour of Amethyst ranges from the palest lilac to deep rich purple shades.
Amethyst is dichroic showing bluish or reddish purple tinge when viewed from
different angles. Experts consider African Amethyst ; royal purple with reddish
overtones to be the gems finest colour.
An Amethyst chemistry is made from SiO2
silicon dioxide with trace elements of iron.
Heat treatment is the main treatment for an Amethyst gemstone, when in the
heating process it will produce light yellow, red-brown, green or colourless
Inclusions Amethyst commonly shows what is called zoning, which consists of angular
zones of dark to light colour. A typical inclusion that can be found in amethyst
is tiger stripe, this characteristic is caused by parallel liquid filled canals within the stone.
Cleaning & Care Warm soapy water and a soft toothbrush will help maintain
the sparkle of your Amethyst. Ultra sonic machine cleaning is generally safe
except for rare instances when the stone has been dyed or treated with fracture
filling. Steam cleaning is not recommended as Amethyst should not be exposed to
heat. Abrupt temperature
changes can cause amethyst to fracture. Some amethyst colour can fade with
prolonged exposure to intense light. Amethyst can also be damaged by
hydrofluoric acid, ammonium fluoride, and alkaline solutions. Visit us on a
yearly basis for a FREE clean and polish service.
Storing Your Amethyst When you are not wearing your Amethyst jewellery place it
in a cloth pouch or in a separate compartment to other gemstone jewellery (i.e.
emerald, sapphire, ruby, diamond are higher on the Mohs hardness scale) they
could cause scratches to your amethyst jewellery.
Interesting Facts Amethyst is one of the most popular crystalline quartzes and was very
popular in 19th – 20th century jewellery. A deep uniform
purple colour is more expensive than pale lavender shades. Amethyst was associated
with Bacchus – the god of wine, it was traditionally worn to guard against
drunkenness and to install a sober and serious mind.
A closely related quartz variety
called Ametrine contains a striking mixture of two contrasting quartzes,
purple amethyst and yellow citrine.
The worlds largest Geode of amethyst
was given the name Empress of Uruguay, with measurements of over three metres
tall (that’s eleven feet) and weighing two and a half tonnes