Fluorite is a common mineral crystal
The ancient Pearl of the Night was made from it
Today's camera lenses are also related to it
Because the hardness is low
Many jewelers and mineralogists
Fluorite is not considered a gemstone category
The crystal shape is however regular
Crystal clear fluorite
It really shouldn't be ignored and left out in the cold
What is fluorite
Fluorite, also known as calcium fluoride, is a common halide mineral, it is a compound, its composition is calcium fluoride, is an important mineral for extracting fluorine. Fluorite is generally granular or lumpy, with a glass luster, and is more green or purple. Fluorite often emits blue-green fluorescence under ultraviolet or cathodic rays, and its name is derived from this characteristic. The hardness of fluorite is 4, there is no polychromism, the refractive index is 1.438, and the density is 3.18.
Although the hardness is not high, but because of its good transparency, it is rich in color – fluorite can take on almost any color: from the more common green and purple, to light blue, yellow, pink, orange yellow, brown, black, and even the rare colorless transparent form. These colors can even appear in layers within the same crystal, making them even more dazzling and magical.
Fluorite in various colors
In addition to the rich color, the crystal forms of fluorite are also diverse, common monomorphs are cubes, octahedrons, diamond-shaped dodecahedrons, and there will also be cubes and octahedral polymorphs and parallel contiguous crystals.
In short, it is a crystal mineral with a regular shape and bright and transparent color, which is like colored crystalline rock sugar, but more angular than rock sugar blocks, and has great aesthetic value.
Fluorite is not a gemstone
Some people say that at night, you can see the blue light emitted by fluorite - under the stimulation of external energy such as light energy, the electrons in the calcium fluoride molecule will enter the high-energy state from the low-energy state, and when the external energy stimulation stops, the electrons release energy to emit a faint light. According to legend, the "Night Pearl" on empress dowager Cixi's hair was made by her.
So is fluorite a gemstone? Zhang Yu of the Jewelry College of China University of Geosciences (Beijing) believes that although fluorite is soft and crispy, the better quality crystals in it can still be classified as gemstones. These fluorite can be used as ornaments, carvings, and are also suitable for making spherical and cylindrical beads. It should be noted that when wearing, do not be scratched by hard objects.
Specimens of fluorite crystals from China
Chenzhou City in Hunan, China, Dayu County in Jiangxi, and Keshketeng Banner in Inner Mongolia are all famous fluorite specimens.
This fluorite specimen of Yaogangxian in Yizhang County, Chenzhou, is blue-green on the inside and blue-purple on the outside, and ripples in the light; the two fluorite specimens of Dayu are blue and dark purple, they are cube crystals, and the blue one can let us see the joints as clear and neat as mosaics; the two specimens of Huanggangliang in Keshketeng Banner are colorless and transparent, one is pink, and they are pure in color, which are two very rare colors; although the fluorite specimens in Guxian Town, Henan Province, are not produced much, However, there are unique blue spherical crystals.
White-green two-color fluorite, as if green trees around the embankment, angry waves roll frost and snow, the sky is endless~
Crystal, fluorite, barite symbiosis, he is in your heart, you are in my heart, a beautiful love triangle!
Green-white two-color fluorite, a piece of ice core in Jade Lake is not ~
The tender green fluorite is like the girl's hazy gauze skirt, reminding you, remember the green luo skirt, everywhere pity the grass.
Blue fluorite is covered with white crystal crystals, and the size of the crystals is arranged in a staggered manner, giving people the depth of the mountains and mountains, but also giving people the sacredness of the pyramid.
Moonlight sprinkled on the palace, flowers and shadows, moonshine, water spirit palace five clouds flying... Take you back to that heyday.
(Content reproduced from the Internet)