The tourmaline is rich in color. According to the tourmaline professional, the tourmaline has been found in 17 colors! But why does tourmaline have so many colors? Color Magic Stone tells you: Tourmaline is a complex borosilicate characterized by boron. The chemical formula is (Ca, K, Na) (Al, Fe, Li, Mg, Mn) 3 (Al, Cr ,Fe,V)6(BO3)3(Si6O18)(OH,F)4.
We can see that there are so many kinds of elements in the ore body of the tourmaline. In fact, the reason why it has multiple colors is here!
Tourmaline can be divided into the following main varieties according to their colors:
1, red-pink tourmaline
Red to pink due to manganese, pleochroism is obvious, red to pink. The most valuable is the tourmaline called “double peach†in the business world.
2, blue tourmaline
Due to the blue color of iron, the pleochroism is from weak to weak, showing dark blue and light blue.
3, green tourmaline
It is green due to its chromium and vanadium elements, and its pleochroism is obvious. It is light green and dark green. The birefringence is high, usually 0.018, and the highest is 0.039.
4, yellow tourmaline
In mineralogy, it is mainly lithium tourmaline and magnesium tourmaline. Yellow may be related to the incorporation of trace amounts of tertiary iron or the incorporation of second-order manganese.
5, brown tourmaline
Mostly magnesium tourmaline, versatile, dark brown to green brown.
6, black tourmaline
Dark to pure black, almost opaque tourmaline. It is usually an iron-rich or titanium-rich variant and one of the most common types of tourmaline.
7, two-color tourmaline
A ribbon (two-color, three-color, and multi-color) that is often distributed along the long axis of the crystal, or a ribbon that is concentrically distributed, usually called "watermelon tourmaline" when the inner infrared is green.
After reading these, you will definitely sigh for the magical beauty of the tourmaline! Sometimes I think about nature, it is a great creator. She gives such a precious gift to human beings - beautiful and magical tourmaline. Ordinary, we are wearing a beautiful tourmaline bathing in the sunshine, how can we not be happy? "The ground!
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