T/JSAS 041-2023 Pink crystal products

Scope

Scope: This document specifies the requirements for pink quartz products, product grading, inspection methods, inspection rules, and packaging and transportation requirements. This document applies to the production of natural pink quartz. It applies to monochrome natural pink quartz. It does not apply to special inclusion-bearing natural pink quartz or phantom natural pink quartz grading. Main Technical Content: 3. Terms and Definitions The following terms and definitions apply to this document. 3.1 Pink Crystal Also known as "rhodochrosite," "rose quartz," or "pink crystal," pink quartz is colored by trace amounts of manganese and titanium in the crystal, resulting in a pale red to rose-red quartz crystal. Optical characteristics: Uniaxial positive optics, Mohs hardness 7, density 2.66 (+0.03, -0.02) g/cm3, refractive index 1.544–1.553, birefringence 0.009, and pleochroism related to body color and color intensity. 3.2 Pink Crystal Products Products made from pink quartz, including crystal balls, bracelets, necklaces, cabochons, pillars, pyramids, beauty massage sticks, and scraping boards. 3.3 Pink Crystal Inclusions Common inclusions in pink quartz include gaseous, liquid, and solid inclusions. These inclusions, with their rich colors and diverse forms, are a special category in crystal collecting. 4. Physical and Chemical Properties of Raw Materials The physical and chemical properties of raw materials must meet the requirements specified in Table 1. Table 1: Physical and Chemical Properties of Raw Materials Item Indicator Luster Anisotropy Density 2.66 (+0.03, -0.02) g/cm3 Optical characteristics Heterogeneous body, uniaxial positive optics, may exhibit "eye of bull" interference patterns Pleochroism Weak, varies depending on color Refractive index 1.544–1.553 Birefringence 0.009 Fluorescence Long wave: none; short wave: none UV-visible spectrum No characteristic Magnification inspection Colo

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