Tourmaline is rich in color. According to tourmakers, the tourmaline has been found in 17 colors! But why is tourmaline so many colors? Xiaobian 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, but 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.
2, blue tourmaline
Blue due to iron, pleochroism from visible to weak, 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 certainly sigh for the magical beauty of the tourmaline! Sometimes think about it, nature is a great creator, she gives such a precious gift to human beings - beautiful and magical tourmaline, ordinary we wear beautiful The tourmaline bathes in the sunshine and how can you not "squat" in the sky!
Surveillance lens, HD surveillance lens, security lens, security lens manufacturer
Dongguan Shengqiang Electronic Co.,Ltd , https://www.sqoptical.com