• 2022-10-24
    蔷薇辉石 (Rhodonite)的折射率是()
    A: 1.733~1.747 (+0.010,-0.013) 点测法1.73 因常含石英可低至 1.54
    B: 1.742 常见1.74
    C: 1.486~1.658
    D: 1.660~1.676 (±0.005)