The cufflinks started to move closer to act as fashion goods

Lapis lazuli cufflinks from the contact metasomatic metamorphism formed mainly occur in the Portland - magnesian skarns and calcareous skarns. Lapis lazuli cufflinks main origin of the United States, Afghanistan, Mongolia, Myanmar, Chile, Canada, Pakistan, India and Angola. China has not found lapis lazuli cufflinks deposit. The first impression of many women for silver cufflinks is the silver bracelet sent by the grandmother. The English name of the soft jade Nephrite, sometimes with the Jade. Chinese name jade and nephrite nephrite was first produced in Hotan, Xinjiang, also known as "Hetian" or "Xinjiang jade".
Nephrite is a chain structure, moisture content of calcium and magnesium silicate. It is the rock-forming mineral amphibole cufflinks family cufflinks tremolite, actinolite cufflinks based, and contains other trace mineral composition of microscopic fibrous or dense massive mineral aggregates. That was the sediment of a life time as well as the beloved cuff links of the grandmother. The chemical composition Ca2 (Mg, Fe2 +) 5 (Si4O11) 2 (OH) 2. In the monoclinic crystal system. The crystals were fibrous or needle cylindrical. A variety of colors was white, blue, yellow, green, black, red and other colors. General oil sheen, sometimes waxy luster. Translucent to opaque. Refractive index 1.606-1.632, birefringence of 0.021-0.023. No fluorescent or phosphorescent.
 Hardness 6-6.5, density 2.9-3.1g/cm3. Fracture uneven shape. Tenacious, fine texture, tough, very bright polished surface. Nephrite variety that can be divided into suet white jade, white jade, jade, green jade, jasper (specifically refers to the green nephrite), black jade, topaz, the sugar jade, flower jade, Jinshan Yu. Suet white jade texture and delicate, glossy white as sheep or goats, called "nephrite", "white jade highest. These mens cufflinks are mostly hidden in the bottom of the wardrobe used to hedge against inflation. Difference of of nephrite similar jade cufflinks. Similar to jade cufflinks Kunlun jade (serpentine the Cufflinks quality jade), Chrysoprase (stone cufflinks felsic Jade), emerald cufflinks (jadeite), Jade (serpentine cuff quality jade), green Tanglin Cufflinks (Cufflinks English quality jade), white marble cufflinks, grapes and stone cufflinks.
Difference of of nephrite similar jade cufflinks with the naked eye and detection equipment is not difficult to distinguish from the hardness, density, structure, gloss, and the refractive index and other identification. Hardness: Nephrite 6.5-7 serpentine cuff quality jade 2.5-5.5, English quality jade, stone cufflinks, emerald cufflinks 6.5-7, white marble 3.5. Density: nephrite 2.9-3.1g/cm3, serpentine the Cufflinks quality jade 2.44-3.18g/cm3, stone cufflinks felsic jade 2.65g/cm3 emerald cufflinks 3.25-3.34g/cm3, marble 2.65 2.75g/cm3. At present, silver jewelry and cufflinks gradually keep away from the traditional concept of jewelry.  Diiodomethane (density 3.33g/cm3) and bromoform (density 2.9g/cm3) measuring the ups and downs of jade cufflinks can be distinguished. Identification of nephrite raw material focuses on the hardness and density of the finished product identification focused on the structure and gloss.
Nephrite evaluation and purchase. The cufflinks started to move closer to act as fashion goods. The basis for the evaluation of the value of nephrite jade, jade and jade sex. Which jade, the jade must be clear, not gray evil without variegated by the best. Jade jade requirements for fine and uniform Run, pure and no hybrid, no matter what the color of the gem, quality nourish the more the better, the more detailed the more significant moisture. Nephrite jewelry, suitable for a variety of character, people of all ages wear. Attention to texture, color, luster, the block such as the time of purchase.