Beige topaz, Rosin onyx, also known as rosin yellow, is named for its color like yellow rice. Its jade is exquisite and soft, and its color is pure and translucent, so it is called “topaz, yellow agate, golden jade”, with very moist grease luster and wax strong luster.
Beige topaz is not jade, but a kind of marble. Its main component is calcite crystals, which are yellow due to the presence of metallic chromium. The main producing areas are Desheng Town, Zhushan County, Miaogang Neixiang in Henan Province, Weiying in Xichuan, Tanshan in Hubei, and other places. The marble resources of Zhushan County are mainly distributed in Desheng Town, and many varieties such as “beige topaz”, “white marble”, “sea wave gray” and “furlong red” have been discovered.
Basic characteristics: The main mineral composition of beeswax topaz is dolomite, followed by calcite and a small amount of quartz. Due to the difference in the content of color elements or impurities, jade often presents different yellows, generally honey yellow and yellow, but also light yellow, brownish-yellow, and other colors; waxy luster, glass luster, slightly transparent To translucent. It has cryptocrystalline, fine-grained structure, massive structure, dense, fine, and tough texture. The hardness is 4.3-4.5, it is brittle, the density is about 2.7 g/cm3, and the average compressive strength is 2478kg/cm2.
Detailed classification: Beige topaz is divided into different types according to its different jade texture and color. It is like the same jade, but it is divided into violet, emerald green, lotus root powder, parrot green, and so on. Beige topaz can be divided into:
Ripple yellow-the pattern resembles layers of waves, rising step by step, layering on top of each other, or going eastward like a big river, majestic and majestic.
Lightning yellow-a piece of jade suddenly flashes with several zigzag white lines, yellow lines, and red lines, just like irregular lightning in the sky. It is breathtaking, fantasy, and magnificent, and it is very artistic.
Ice yellow-like a frozen yellow liquid, there are pieces of ice in the jade.
Millet yellow-the color is like millet, light in color.
Golden jade-the color is like gold, and the color is deep.
This classification is not strict. Natural jade is always diverse and has several characteristics at the same time.
