Urea

Formula: CO(NH2)2

Reflected/transmitted colour:

Pleochroism:

Optical isotropy/anisotropy: Uniaxial

Optical sign: +

Refractive indices: ω = 1.484, ε = 1.603

Bireflectance/Birefringence δ: 0.119

2V angle:

Dispersion:

Optical orientation:

Optical axial plane:

 

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