Identification of quartzite jade
Quartzite jade is a kind of dense massive or micro-granular aggregate, some of which have beautiful colors because of containing colored minerals. Among them, there are many kinds of jade, such as Jingbaiyu, Dongling Stone, Mixian Jade, Guicui, Taiwan Province Jade, and Placer Stone.
Main characteristics of quartzite jade
Most of them are micro-particle timely aggregates, including glaucophane, lepidolite, chromite and hematite. Colors are white, green, emerald, light blue, purple, lavender and other colors. Hardness 7. The relative density is 2.65-3.0. Glass is shiny, opaque to almost translucent.
Quartzite jade is mainly composed of seasonable jade, which can be easily distinguished from jadeite and nephrite according to its hardness, glass luster and seasonable luster. At the same time, quartzite jade is brittle and not as tough as nephrite and jadeite. Sandstone has the characteristics of metallic luster because it contains minerals, which is also very easy to distinguish. In the laboratory, we can identify the types of colored minerals by grinding thin slices, and study the causes of color generation and the characteristics of luminescence and absorption spectra by chemical analysis.
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