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, The chemical composition of electrical stones is



Tourmaline’s English name Tourmaline means “mixed gem” because the chemical composition of tourmaline is complicated, resulting in the most rich colors. ] 3 (OH, F) 4, of which metal ions such as iron, magnesium, lithium, manganese, and aluminum can be replaced by each other. The different content and proportion of various ions will directly affect the color of the tourmaline. Tourmaline.

The composition of tourmaline is complicated and the color is changeable. The international jewelry industry basically divides the business variety according to the color of tourmaline, mainly includes the following varieties:


The total name of light blue to dark blue tourmaline. Because blue tourmaline is rare, it has now become the most valuable color species in tourmaline. Blue tourmaline is produced in the yellow clay of the Russian Siberian gowns, and Brazil and the United States are also produced.

Blue tourmaline pendant


Red tourmaline (Rubellite):

The total name of pink to red tourmaline. Red is the best tourmaline with purple -red and rose red. It is known as red tourmaline, and it is also called “children’s noodles” in China. However, the natural world produces more than brown, brown red, dark red, etc., and the color tone changes greatly. At the same time, the proportion of tourmaline will change with color, and the proportion of dark red is greater than the proportion of pink.

Red tourmaline bracelet

Brown tourmaline (dravite):

The color is dark and rich in chemical element magnesium. Brown tourmaline is mostly produced from Sri Lanka, the Three Kingdoms in North America, Brazil and Australia.

Brown tourmaline


Colorless tourmaline (Achroite):

The colorless tourmaline is very rare, only a small amount of output in Madagascar and California, the United States. It should be noted that some colorless tourmaline on the market is processed by pink tourmaline heated and faded.


Colorless tourmaline

Green Tourmaline:


Green and yellow tourmaline are the most common in all tourmaline colors, so the value is inferior to blue and red tourmaline. Green tourmaline is mostly produced in Brazil, Tanzania, Namibia, and yellow tourmaline is mainly distributed in Sri Lanka.

Green tourmaline ring noodles

Multi -color tourmaline:

Because tourmaline bands are very developed, red, green bodies or three -color bands often appear on a crystal. Commonly contains red and green gems, commonly known as “Watermelon Tourmaline”, which is loved by collectors and consumers.

Watermelon tourmaline ring noodles

According to the characteristics of tourmaline’s optical effects, tourmaline is divided into the following varieties:

Tourmaline cat eyes:

When the electrical stone contains a large number of fiber and tube -shaped wraps in parallel, the cat’s eye effect can be displayed when grinding into curved gemstones, which is called tourmaline cat’s eye.

Troubled tourmaline:


Tourmaline with obvious color changes, but very rare.

Tourmaline can be divided into different types because of the different colors and optical effects. Among them, blue tourmaline and red tourmaline are more precious. No matter which color of tourmaline, the colorful, the higher the saturation, and the higher the value of the tourmaline. Essence

Tourmaline cat eyes: