The burial stone of Mount Kilimanjaro

The burial stone of Mount Kilimanjaro In the 1960s, blue-violet transparent crystals of halcyon were discovered in Tanzania. They were also known as Tanzanite. Also known as Tanzanite, it was originally intended to find valuable gems in Tanzania. It was later discovered that Tanzanite was unexpectedly discovered. After the promotion by the American Tiffiny company, this kind of jewel gradually gained popularity. The reason why it was named Tangshangshi is also because it is like the dusk sky of Tanzania. The color is dark blue and purplish, with strong pleochroism, but the hardness of the stone itself is 6.5 degrees Mohs hardness. Because of the civil war in Tanzania for a long time, it is very poor, the mining of precious stones is not easy, and the output is scarce. In addition, the crystallized granules are not large, so in general, the probability of being able to buy 3 to 5 carats or more is not high, so the price remains high. General jewellery companies are not easy to see where it is. For the sake of quality, Sapphire's specifications are better than sapphire, not too dark, and pleochroism is obvious. These characteristics are true. Make people feel good.

1. Chemical composition Ca2Al3(SiO4)(Si2O7)O(OH)
2, Crystalline and crystallization habits Orthorhombic system, often along the c-axis extension, parallel columnar stripes.
3, optical properties 4, the color of the common brownish green blue, there are gray, brown, yellow, green and so on. After the heat treatment, the brownish green to grayish yellow can be removed and it is blue and blue-purple.
5, transparency and gloss transparent, glass luster.
6, optical biaxial crystal, positive light.
7. Refractive index and birefringence refractive index: 1.691 to 1.700 (±0.005), birefringence: 0.009 to 0.010, dispersion: 0.021.
8, chromogenic three-color nature is obvious, tan color chromism performance of blue, purple, green and yellow, heat treatment after the blue and purple; brown pleated stone polychromaticity is green, purple and Light blue, while the pleochroism of the yellow-green yore is: dark blue, yellow, and purple.
9, understand: cleavage is not developed, shell-shaped to uneven fracture.
10, hardness: Mohs hardness 6 ~ 7
11, the relative density: 3.35
12, tanzanite identification points Tanzanite easy to confuse with purple sapphire and cordierite, but according to its characteristics of pleochroism and different refractive index values ​​and density values ​​are easy to distinguish it.

The veil was derived from the foothills of Mirrani at the foothills of Kilimanjaro. The stone of fire has been hiding her moving face from the Marthas who live in nomadic life. She did not open her veil until 1967, according to legend. A bolt of lightning struck the area near the Mirrani mountains and set off a blazing fire in the surrounding meadows. When the Masai herdsmen rushed back to the farm, they found a lot of blue stones adorn the ground. Strangely enough, the usual reason cannot explain this phenomenon, because the temperature released from the fire in the steppe is not enough to cause this dramatic change.

In fact, the discovery process of slats is as full of magic as the gem itself. We have no way of knowing who first discovered this gem, and the locals say that it was their tribe, Ivory Watts, who discovered a translucent Tanzanite crystal stone at the foot of Mount Kilimanjaro. He shared his findings with local miner Diso Oza. Di Sououza intended to seek rubies in this area, but found "Sapphire" outside. Because of its numerous blue and complex ingredients, gemologists quickly figured out her identity. Interestingly, the legendary Scottish gemologist Cambrault. In 1967, when he went to Tansani to work as a slat stone for Jeffrey Jewellery Co., he discovered Shafferite at the same time. At the same time, he was also the gem of the GIA (American Gemological Society) who brought the draped stone to the United States. The first person to conduct the identification in the trade laboratory.

Soon, the venetian stone opened up the market in the United States, where he stood at the foot of the New Orleans Tiffany Company. Louis. Comfort. Tiffany’s great-grandson, Henry B Pratt, who later became the president of Tiffany & Co., was ecstatic about her beauty, but felt her name “Blue Enamel” was not as good as it should be. The English pronunciation of “Blue Blind Stone” is similar to that of “Blue Suicide,” because any popular item is popular, so people have renamed this rare and strange African gemstone as a slat stone. In the official release of the Dreadlock Stone in October 1968, Pratt made this assessment of this gem: "She is the most beautiful sapphire discovered in the past 2000 years."

The blue-violet flame of the draped stone soon triggered a popular storm throughout the world, and people called it "the jewel of the 20th century." Due to the increasing global rewards, the demand for this gems and jewels soared. In 1998 and 1999, the drapes made it to the top spot in the world's best-selling color gems.

In 2002 the draped stone was chosen as the birthstone of December (this is the first change since the stone watch was born in 1912). She was seen as the ideal stone to celebrate a new life or a new beginning. The symbolic significance comes from the cultural tradition of her discovery of Marthas. The locals believe that blue is the color of the sacred spirit. When a woman has a child at home, neighbors send her blue beads or blue robes. Today, this tradition has changed because of the discovery of the draped stone, because people have already changed the sidor stone as a gift. They believe that this gift will bless the newborn's healthy growth and be able to achieve a positive and successful life.

The curtain stone continues to be popular in contemporary jewelry trends. Paris's "Naughty Child" Tom. Along with the Ford and Milan's Gucui pop houses, exotic sapphires of collectable value, including venetian stone, are filled with pedestals.

Embroidery is the craft of decorating fabric or other materials using a needle to apply thread or yarn.

Embroidery may also incorporate other materials such as pearls, beads, quills, and sequins. In modern days, embroidery is usually seen on caps, hats, coats, blankets, dress shirts, denim, dresses, stockings, and golf shirts. Embroidery is available with a wide variety of thread or yarn color.
Some of the basic techniques or stitches of the earliest embroidery are chain stitch, buttonhole or blanket stitch, running stitch, satin stitch, cross stitch. Those stitches remain the fundamental techniques of hand embroidery today.
As the saying goes: Clothes make the man ;The tailor makes the man; Fine feathers make fine birds.

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