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Turquoise

Turquoise


Hardness: 6
Density: 2.5-2.85
Chemical symbol: CuAl6[(OH)2/PO4]4.H2O
Crystalline system: triclinic
Color: turquoise blue, rarely green, veined, opaque, wax shiny and matte.

 


 

Quick identification:

 

Relatively simple differentiation by characteristic color and appearance.

 

Detailed identification:

 

Turquoise impregnated with synthetic resin exhibits a characteristic imprint and a strong smell of resin if scratched by a hot needle. Colored magnesite is softer and becomes stained if it comes into contact with hydrochloric acid.

 

How to determine the authenticity of turquoise without equipment:

(quick identification - may not be reliable)

 

a) Focus on checking the characteristic color and structure of the stone.

 

b) Smell the stone - if you detect resin odor, the turquoise has been modified.

 

c) Make sure there is no paint residue and that the color does not rub off – in this case, it is probably a dyed magnesite.

 

d) If the stone contains gas bubbles, it is glass.

 

How to treat turquoise:

 

Turquoise is very sensitive. Contact with oils (e.g. skin creams, suntan oil etc.) can change its beautiful color to an ugly green. Sometimes, although rarely, it can be restored to its original color by being immersed in ammonia.

 


 

Interesting facts about turquoise:

 

1. Turquoise is one of the most modified stones, especially in the USA, where its occurrence is rich, there are many companies dedicated to its modification and repair.

 

2. The word turquoise comes from Greek "turkois" which means "Turkish," because the first turquoise were brought from Turkey.

 

3. Turquoise is a symbol of prosperity, success and happiness.

 

4. Turquoise is a traditional gift for the fifth and eleventh wedding anniversaries.

 

5. The first recorded mining activity of turquoise is from Egypt, around 3,200 B.C. The ancient Egyptians mainly produced protective amulets from turquoise.

 

6. In ancient Persia, turquoise necklaces or bracelets were worn as protection. It was believed that in an emergency, turquoise stones would change color.

 

7. The Aztecs, who lived in the area now known as Mexico, considered turquoise as strictly reserved for the gods. They produced masks of turquoise used in worship. Turquoise was considered to be such a sacred stone that anyone wearing turquoise jewelry could be immediately beheaded.

 

8. Some mediums believe that turquoise assists them in connecting with the spiritual world.

 

9. Some therapists believe that turquoise helps with heart disease, sciatica and blisters.

 

10.Turquoise was an important trade item between the Native American Indian tribes. Jewelry and ornaments made from turquoise have often been found thousands of kilometers from their place of extraction.

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