When it comes to semi-precious gems, the turquoise certainly stands out from the crowd. But have you ever stopped to wonder where its incredible color comes from? If yes, then you’re in luck because this article is sure to answer all your questions.
Let’s Get Straight to the Point
Turquoise gets its delightful green and blue hues from the trace amounts of iron, zinc, and/ or copper present in its chemical composition.
The Detailed Answer
Turquoise is essentially a hydrous phosphate of aluminum and copper. It is a secondary mineral that is created through the weathering and/or overall transformation of primary minerals.
This stone’s formation generally occurs through the filtration of acidic aqueous solutions into the fissures and veins present within alumina-rich, sedimentary, weathered, or volcanic rocks. In most cases, these cracks tend to contain traces of iron, zinc, and copper which can mix or replace the copper and aluminum present within the solution and result in this gem’s color. That said, do note that these impurities could also exist within the solution itself.
Copper is responsible for the blue hue of the stone. Iron, on the other hand, could give this jewel a green tint by substituting the aluminum present in the chemical structure. Completely green turquoises are caused by the substitution of copper with either iron or zinc.
Depending on the amount of iron, zinc, or copper present within the chemical composition, this gem can currently be found in different shades ranging from a dull green to grass green to a bright, medium-toned, sky blue.
Is the Color-Enhanced Through Treatments?
Yes, sometimes. In order to keep up with the demand for blue turquoise stones, some jewelers do dye this gem with artificial blue pigment. Having said that, do note that these turquoises are less valuable than the natural blue ones. Also the dye doesn’t last very long either, and therefore such stones must be avoided.
Some Other Things to Remember
With a rating of 5 to 6 on the Mohs scale of mineral hardness, the turquoise is a delicate gemstone. It is therefore imperative that you treat it with love and care. Also, picking the right metal and setting for this jewel can go a long way in protecting it from unnecessary damage.
We reckon that platinum will be a great choice for your turquoise jewelry. It is a precious metal with a silvery-white hue. By opting for this metal you’ll be offering your jewel an extra layer of protection.
Other USPs of Platinum
- This metal does not cause allergies, as it is used in its pure form without the addition of any other element. This makes it a great option for those who have sensitive skin.
- The soft glow of platinum enhances the look and feel of the turquoise and gives it a touch of sophistication.
- It does not tarnish and requires very little maintenance.
Setting
When it comes to turquoise, you must consider protective options like the channel or bezel setting. They completely surround the gemstone with metal, thereby creating a protective barrier.
We hope this article gave you all the answers that you were searching for!
Also read: Why is Citrine Yellow in Color?
