The sapphire is found in all the states, principally in the neighbourhood of Beechworth, Victoria.
Other precious stones, including the sapphire, emerald, oriental emerald, ruby, opal, amethyst, garnet, chrysolite, topaz, cairngorm, onyx, zircon, etc., have been found in the gold and tin bearing drifts and river gravels in numerous localities throughout the states.
Sapphire occurs also in Tasmania.
On exposure to a high temperature, the sapphire usually loses colour, but, unlike ruby, it does not regain it on cooling.
As the sapphire crystallizes in the hexagonal system it is dichroic, but in pale stones this character may not be well marked.