Stone
Turquoise
A porous hydrated copper aluminium phosphate mineral ranging from blue to greenish blue.
Also known as: turkuaz · firuze
Turquoise is a hydrated copper aluminium phosphate, generally forming as veins and nodules in weathered copper-rich rocks of arid regions. Colour and matrix vary with the deposit. Its porosity means wax, polymer impregnation and dye treatments are common in the market.
Turquoise joins the colour of sky with the colour of water in arid lands. Its value in Ancient Egyptian burials, Persian craftsmanship and Indigenous jewellery traditions of the Americas shows that there is no single “turquoise belief.” Each culture read the stone through its own language of protection, status and belonging.
In spiritual use, meaning is a layer distinct from mineral properties but still open to cultural study. Turquoise has traditionally been associated with travel, protection, open sky and truthful speech. The distance and spaciousness suggested by blue make it easy to read as a symbol that “creates room.” Current practice may use it for travel intentions, courage in communication or inherited family protection.
Properties
- Mohs hardness
- 5.5
- Primary color
- blue to greenish blue
- Mineral family
- copper aluminium phosphate