Natural Turquoise is a phosphate mineral with a MOHS hardness which ranges from 4.5 to 6 and as such is easily damaged by hair and body cosmetics, even the oils from the skin can damage the stones surface. To protect your turquoise, it is recommended you put your jewellery on after applying makeup, sunscreen or perfume, and never wear it in the shower, bath or swimming pool
Heat and sunlight can cause Natural Turquoise to discolour or dehydrate. This is not a stone to be worn on a day at the beach.
Natural turquoise has no artificial changes made to the gem. It is just cut and polished. Only high-quality turquoise can be used in its natural state. As you will see, most of what is sold as Turquoise may not be natural or even Turquoise.
The colour of the stone may change gradually as body oils and other sources of moisture are absorbed into the stones, creating a lovely patina.
The colour of natural Turquoise can range from a vibrant blue to a green to brownish green with the webbing being black, brown, yellow or a host of other colours.