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Spinel ball

Spinel ball

Grade 5 ~ 50 (AFBMA) Diameter 0.15 mm ~ 1 inch ● Spinel Characteristics 【Optical Properties】 Refractive Index Nd 0.5893 1.727 Wavelength Dispersion (nf-nc) 0.012 Transmission Disk thickness 1mm: − Infrared Region 85% 【Physical Properties】 Crystal Structure Isometric Chemical Composition MgO·3.5Al2O3 Purity 99.99% Density 3.61