Traditional Culture Encyclopedia - Traditional festivals - How to distinguish marble from jade?
How to distinguish marble from jade?
Marble originally refers to white limestone with black patterns produced in Dali, Yunnan. Its cross section can form a natural ink landscape painting. In ancient times, marble with molding patterns was often chosen to make painting screens or mosaics.
Jade is a mineral.
2. Different characteristics
White marble is generally called white marble, but the translation of western statues is also called marble. There is a saying about the name of marble. Dali's marble is the best in China. Hence the name.
Jade is a relatively valuable mineral. Jade is rich in trace elements such as zinc, iron, copper, manganese, magnesium, cobalt, selenium, chromium, titanium, lithium, calcium, potassium and sodium. The embellishment of jade can eliminate impetuous heart, the color of jade can delight bored heart, and the purity of jade can purify dirty heart.
Extended data:
Generally speaking, the luster of gems can be simply divided into "strong light", "burning light", "flash" and "weak light". But light is the strongest brightness, and people must squint. For example, the polished diamond total reflection surface has such brightness; The luminous brightness is also very high, dazzling, and high-hardness gems generally have burning brightness after polishing.
Flash is the brightness of ordinary glass, which is divided into strong flash and weak flash. Jade with high hardness is generally strong flash, while jade with low hardness is weak flash. However, the light intensity of the stone surface with lower hardness is weak after polishing.
Every specific gem has a specific refractive index, and it is difficult to keep consistent with it under various conditions such as hardness, density, refractive index and brightness. Therefore, through the identification of these standards, the identity and initial value of gems can be confirmed.
Baidu encyclopedia-jade
Baidu encyclopedia-marble
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