Distinctive blue coloured chalcedony mineral exhibiting a dull and very slightly waxy lustre. Chalcedony is a variety of microcrystalline quartz which means its crystals are so small they can only be seen with strong magnification.
In its purest form chalcedony is white but the presence of inclusions of other minerals cause many stones to occur in a wide variety of different colours. Although the blue variety tends to be known simply as chalcedony, most other colours have their own unique name. When chalcedony occurs with distinctive bands it's known as agate, when it exhibits an apple green colour it's chrysoprase and the reddish orange variety of chalcedony is better known as carnelian.
Chalcedony is relatively hard and grades 7 on Mohs scale of mineral hardness. It's also porous which makes subtle coloured stones ideal for dyeing which is said to make them more appealing to the wider commercial market.
In crystal healing chalcedony is used to balance the energy of the mind, body, emotions and spirit and is said to alleviate hostility and an irritable mood. This stone is also said to enhance generosity and help increase mental stability.
Weight (grams): 89.2
Size (cms): 8 x 3.5 x 3.2