Glossary of Gemstones: T


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Tiger Eye

Tiger-eye is quartz that contains oriented fibres of crocidolite that have been replaced by silica. Tiger-eye is displaying chatoyancy (a vertical luminescent band like that of a cat’s eye). Tiger-eye typically has lustrous alternating yellow or brown bands.

Tiger Eye comes in several colours, the most common being golden brown. A rare blue/grey coloured stone is the called Falcon’s Eye or Hawk’s. A Red Tiger Eye is often heat-treated and sometimes called Cherry Tiger Eye.

Wedding anniversary:

Tiger Eye is the anniversary gemstone for the 9th year of marriage.

Spiritual power:

This stone is believed stimulates self-control and protection.


Topaz is one of the few gem minerals, which, under suitable conditions, grow into enormous crystals. The stone is transparent with a vitreous lustre.

The classical precious topaz is yellow or yellow to orange-brown in colour but it can also be colourless, blue, green and pink. Blue topaz does occur naturally, but almost all commercially available blue topaz is produced from less attractive colours which are irradiated and heat treated to turn them blue. Rare and exceptional topaz are pale pink to a sherry red.

Topaz is a very hard gemstone but it can be split with a single blow, a trait it shares with diamond. As a result it should be protected from hard knocks.


Topazes along with citrine are birthstones of (Scorpion): Oct. 24 – Nov. 21.

Wedding anniversary:

Topaz is the anniversary gemstone for the 4th and 19th year of marriage. Imperial topaz is the anniversary gemstone for the 23rd year of marriage.

Healing ability:

Topaz stimulates the endocrine system and assists in general tissue regeneration. It also increases poor appetite and helps to fight blood disorders.

Spiritual power:

Topaz balances emotions and calms passions. It releases tension and gives feelings of joy. The Topaz gemstone is known as spiritual rejuvenation gemstone.


Tourmalines are precious stones displaying a unique splendour of colours. They consist of mixed crystals of complex aluminium-borosilicate varying in their composition. The slightest changes in composition will result in completely different colours. In fact, crystals showing one colour only are quite rare; generally one and the same crystal displays several shades and colours.

The name “Tourmaline” has been derived from the Singhalese expression “tura mali”, which translates as “stone of mixed colours.” The colour of Tourmalines range from blue, yellow, red and green. Often they show two or more colours and are cherished for this multi-coloured appearance. There are Tourmalines which change their colour from daylight to artificial light and no Tourmaline exactly resembles another one. This gemstone shows many faces and is thus excellently suited to match all moods and tempers.


Tourmalines along with opal are birthstones of Libra (Balance): Sep. 23 – Oct. 23.

Wedding anniversary:

Multicoloured Tourmaline is the anniversary gemstone for the 8th year of marriage.

Healing ability:

Tourmaline calms nerves, regulates hormones, fights against genetic disorders. It also induces a tranquil sleep, relieves arthritis pain and helps to fight heart disease.

Spiritual power:

Tourmaline is said to dispel fear, negativity and grief. According to legend, the tourmaline of all colours protects the wearer against many dangers and misfortune.

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