The refraction index of dangerous materials was 1.66 - 1.67, and the refraction index of Burmese jade was 1.65 - 1.67. The novel "Ledge" is equally exciting. Everyone is welcome to click and read it!
There was a close relationship between the index of refraction and the index of reflection. The relationship between the two can be seen from the formula, R =<<frac>{n1-n2}{n1 + n2}>>(the Fresnel formula, where <R> represents the reflection index, and <n1> and <n2> represent the refraction index of light when it enters medium 2 from medium 1). In addition, according to Snell's Law: <</><<</></><</>>), the relationship between the refraction index and the When light enters another medium vertically from one medium (that is, the angle of incidence is <alpha>=<alpha>= 0>), the greater the difference in the index of refraction between the two media, the greater the reflection. For example, when light enters a solid from a vacuum or air (the index of refraction is close to 1), the higher the index of refraction of the solid, the higher the reflection. The higher the index of refraction, the higher the reflection, and the stronger the luster. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1. ** Refractive Index ** - The index of refraction reflected the ability of the lens to reflect light. When light entered different media, the angle would change, and this phenomenon was represented by the index of refraction. When the light beam is close to normal incidence (the angle of incidence is approximately equal to zero), the calculation formula for the reflection rate is related to the true index of refraction of the two media (that is, the index of refraction relative to vacuum). In different optical phenomena and calculations, such as the study of thin films on thick surfaces, as well as the measurement of the thickness and refraction index of samples in the low absorption region, the refraction index was an important factor. For example, in the experiment of measuring the thickness and the refraction index of the sample in the low absorption region, in order to accurately measure the surface toughness and the refraction index, it was necessary to fit the relevant curve. 2. ** Transmittance ** - The transmission is related to the reflection, and the sum of the two is 1 (Ras+Tas = 1). In some studies, such as the study of the optical properties of samples in the low absorption region, it would involve extracting the optical properties of the film from the transmission data, but this method may lack accuracy. There may be difficulties in fitting the transmission data. For example, when measuring the thickness and refraction index of the sample in the low absorption region based on the classical transmission line method (TLM) principle and method, it is difficult to find the fitting parameters of each function and lack accuracy when fitting the cos (?) based on the transmission. 3. ** Reflectivity ** - The percentage of the radiation energy reflected by an object to the total radiation energy is called the reflection rate. The range was that the reflection rate was less than or equal to 1. Different objects had different reflective rates, mainly depending on the nature of the object itself (surface condition), as well as the wave length and angle of the incident electromagnetic wave. Among the common types, the planet's refraction was an important physical quantity that described the physical properties of the planet's surface. For example, Venus's refraction was 76%, Mercury's was 10%, Earth's refraction was roughly between 35% and 43%, seawater's refraction (refraction) for short-wave radiation was 5%, and white ice and snow's refraction was 30 - 80%. Opaque media such as mirrors had a reflection rate of 100%, while non-mirrors were related to factors such as color, temperature, and light attributes. The magnitude of the reflective rate of a transparent medium was related to the angle of incidence of light. The larger the angle of incidence, the greater the reflective rate. For example, when light entered a light sparse medium from a light dense medium, when the angle of incidence reached a critical angle, the phenomenon of total reflection would occur. When the angle of incidence was less than the critical angle, it would be partial reflection. In the calculation of some optical phenomena, there were also calculation formulas related to the reflection, such as Vs =(sin(Theta1-Theta2)/sin(Theta1 + Theta2))^2 (Rp=(tan(Theta1-Theta2)/tan(Theta1 + Theta2))^2), etc. In some optical experiments and theoretical research, the reflection data could also be used to extract the optical characteristics of the film. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Myanmar jadeite is mainly made of jadeite, with a refraction index of 1.66 (point measurement), a relative density of 3.25 - 3.34, and a characteristic absorption peak of 437mn. The main component of the dangerous material was omphacite, with a refraction index of 1.67 - 1.68, hardness of 7, and relative density of 3.33 - 3.41. The novel "Ledge" is equally exciting. Everyone is welcome to click and read it!
There were the following differences between Burmese jade and Guatemala jade (dangerous material): 1. In terms of luster, Burmese jade was more glazed, while Guatemala jade was more oily. 2. ** structural stability **: Guatemala jade's structure is unstable, and it is easy to mutate. The green material will slowly turn black over time, and it will feel like black jade. However, burmese jade can also mutate. 3. ** Color Uniqueness **: The edge of the dangerous jadeite is dark, and you can see the obvious color change when you turn it from the front to the side. The color of the Burmese jadeite is relatively uniform, and there will be no change when you turn it. 4. ** Cotton-like state **: The cotton-like state of the emerald jade from Guatemala is like a sheet of cotton, like a goose feather falling from the snow. The cotton-like state of the emerald jade from burma is similar to the feeling of torn cotton and put in glue. It is hazy and faintly discernible. 5. ** Unspoken rules of raw stone carving **: In terms of carving, in order to achieve a better visual effect, dangerous materials need more rigorous water transfer techniques. They cannot be made into finished products as thick and large as Myanmar jade. 6. ** Value difference **: In the market, the price difference between similar Burmese jade and dangerous jade is close to 20 times. From the point of view of recycling, the market was not very friendly to dangerous jade. Low-end dangerous jade merchants basically did not bid. 7. ** Appearance **: The color of the dangerous material's skin was mainly white, yellow, gray, etc. The jade meat was blue, green, yellow, etc. The yellow skin dangerous material's finished product was generally gray-blue, greasy, and mostly had yellow fog cotton. It was somewhat similar to Myanmar oil green. The high-quality dangerous material was like blue water, but compared with blue water, it was gray, not pure enough, lacked hardness, high grease, and did not have a bright feeling. The color of high-color dangerous materials was more concentrated. Most of them were based on thin water materials to release the color and then inlaid. There were very few thick-packed finished products. Under natural light, the color was green and dark. Although the composition, structure, and other attributes of the two met the international jade definition standards, there were differences in many aspects. Due to the different mining time and origin, they were treated differently in the market. The novel "Ledge" is equally exciting. Everyone is welcome to click and read it!
The jade produced in Myanmar is mainly jade, which has the following characteristics: - ** In terms of texture **: Myanmar has the largest reserve of jade deposits. Its texture is hard, with a Mohs hardness of 6.5 to 7. Because Myanmar is located between the Indian plate and the Asian plate, it is strongly compressed during the continental drift, forming a continuous high-pressure condition, which makes the jade texture hard. Its structure was arranged in prismatic crystal particles, which was caused by the compression pressure of larger plates during the formation process. - ** Appearance **: The color is solemn and elegant, moist and delicate. Red jade and green jade were commonly seen. Red was jade, and green was jade. Its color was bright and moving, and its luster was gorgeous. It gave people a transparent and ostentatious beauty. Compared to other jade stones such as Hetian jade, it had a higher degree of clarity. - ** In terms of value **: Since Myanmar is the main producer of jade and the production of jade is rare, Myanmar jade has a high value and has won the reputation of "King of Jade". It is the top grade of jade. - ** Cultural significance **: Burmese jade is loved by the eastern people, especially the Chinese people. Jade pendants, ring faces, bracelets, etc. have become the main jewelry of people. Whether it is worn, collected, or given as a gift, it is highly valued. It has a certain connection with people. It is believed to have the effect of stabilizing emotions and balancing physiological functions. It has a special meaning in people's life course, symbolizing many beautiful meanings such as peace and prosperity. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Burmese jade was also known as jadeite, and its hardness was 6.5 - 7. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The jadeite material referred to the jadeite produced in Guatemala, south America. It was discovered in the 1850s and was composed of diopside and jadeite. Its colors were colorful, including green, yellow, purple, black, etc., but the color tone was often gray, dark, and there were many black spots, giving people a sense of darkness. The novel "Ledge" is equally exciting. Everyone is welcome to click and read it!
The leftover bits and pieces of the Burmese jade bracelet were not all waste. The larger scraps could be used to make precious items such as jade bracelets, but the price might be lower than that of complete bracelets or large ornaments, but there was still a certain market value. At the same time, the shapes of the scraps were varied and irregular. It was difficult to make them into finished products such as regular bracelets and cards. However, if the color and species were good, and they encountered excellent designs, they could increase their value. They could be used to make small accessories such as hair clips, hats, collar flowers, boutonniere, tie clips, belt clasps, anklets, bracelets, etc. There were also gourds, pixiu, small flowers, moons, stars, ruyi, ingots, etc. Although they were scraps, they were good for growing water. The novel "Ledge" is equally exciting. Everyone is welcome to click and read it!
Burmese jade referred to jade produced in Myanmar. Myanmar was one of the main producing areas of jade. The northern Myitkyina region had the largest reserves of jade deposits, and gem-grade jade had long been mined to supply the world. Burmese jade was regarded as jade in the traditional sense in the market. People had long been used to calling the jadeite produced in Myanmar jade, and even used Burmese jade as a synonym for jadeite. Its color was solemn and elegant, moist and delicate. There were many colors, such as white, red, green, black, yellow, purple, etc. The jade pendants, ring faces, bracelets, etc. made of it became popular jewelry and won the reputation of "King of Jade". The novel " The Legend of Dian Kingdom in Clouds as Deep as the Sea " is equally exciting. Everyone is welcome to click and read it!