Blue topaz
The stone of clear speech and quiet
The blue form of topaz, one of the most popular blue gemstones in jewellery; known in tradition as a stone of communication and calm.
Blue topaz is the blue form of topaz, an aluminium fluorosilicate mineral. In nature it is rare and usually pale: only a small share of topaz forms blue. Nearly all the blue topaz on the market began as colourless or pale topaz whose blue was deepened by irradiation and heating. The treatment is stable and widely accepted in the trade. Blue crystals come from Brazil, Russia, Namibia and Nigeria.
General information
- Name
- Topaz
- Mineral group
- Topaz (nesosilicate)
- Chemical formula
- Al₂SiO₄(F,OH)₂
- Colours
- Blue, from pale sky blue to deep blue; sold as Sky, Swiss and London blue
- Hardness (Mohs)
- 8
- Specific gravity
- 3.49–3.57
Zodiac signs
- Sagittarius
Traditional meaning
- Communication: Traditionally linked to the throat chakra and said to help you say what is on your mind.
- Calm: Traditionally linked with stillness and orderly thought.
- Clarity: Traditionally a symbol of clear sight.
- Self-expression: Traditionally encourages honest speech.
- Rest: Traditionally associated with still water and unwinding.
Care
Hard (8) but with perfect cleavage in one direction, so a sharp knock can split it. Clean with lukewarm water, mild soap and a soft brush, and avoid ultrasonic cleaners, steam and sudden temperature changes.
Meanings, zodiac signs and elements come from various traditions. They are not scientific or medical information and differ between sources.