Formula: CaC2O4.H2O
Reflected/transmitted colour: Colourless
Pleochroism:
Optical isotropy/anisotropy: Biaxial
Optical sign: +
Refractive indices: α = 1.490, β = 1.555, γ = 1.650
Bireflectance/Birefringence δ: 0.160
2V angle: 84° (calculated), 80° (measured)
Dispersion:
Optical orientation:
Optical axial plane:
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