1. Composition: Calcium magnesium silicate CaMg(SiO3)2 is a pyroxene group CaMg(SiO3)2--CaFe(SiO3)2 is a homogeneous homologous series; CaMg--caFé intermediate member has a diopside and iron The secondary diopside, in which the Cr-rich diopside is also called chromium diopside (variant). In the composition of CaMg(SiO3)2CaFe(SiO3)2 diopside, diopside, iron diopside and calcite, the composition of Mg and Fe is completely isomorphous, and the color is shallow with the content of iron. Deep. 2, crystallization characteristics: monoclinic crystal, crystal development is intact, columnar, thick and short columnar, there are also crystal fragments, water erosion pebbles. 3, color: colorless, gray, light green, dark green, brown and black. 4, variety: a chrome diopside: for bright green, the color is caused by chromium; b star light diopside: black, is a four-shot asymmetric starlight; c blue transparent diaphorite: crystal is small, the color is Deep purple, blue, very rare. 5, mechanical properties: H5SG3.30 (3.26-3.32) starlight can be 3.35, the two groups of obvious cleavage to nearly 90o intersect. 6, optical properties: two-axis (+) RI1.67-1.70DR0.025, low dispersion (0.013) pleochroism is weak to medium, chrome diopside has obvious yellow and green pleochroism. Glass luster, transparent to opaque. 7. Spectrum: Chromium diopside shows chromium spectrum. There are three weak bands in the red zone (690 nm), 635, 655 and 670 nm, absorption lines in the blue-green zone 508 and 505, and an absorption band in 490 nm. The spectrum of other varieties is not typical. 8. Optical effects: cat's eye and starlight effect. Starlight is caused by a directional elongated magnetite inclusion and is magnetic; 9. Luminescence: Blue or milky white and orange-yellow fluorescence is emitted under SW ultraviolet light; light purple light is sometimes emitted under LW ultraviolet light. 10, the origin of production: produced in the metamorphic rocks rich in Ca and kimberlite (chromium diopside); origins are Brazil, Italy, Myanmar, South Africa, Siberia, Pakistan, India and other places. High Visibility Polyester Fabric High Visibility Polyester Fabric,High Visibility Parka Fabric,Waterproof Coating Fabric,High Visibility Gabardine Fabric Wujiang Bonheur Special Textile Co.,Ltd. , https://www.bonheurtex.com
May 07, 2021