Formula: Cu2Mg2(PO4)2(OH)2.5H2O
Reflected/transmitted colour:
Pleochroism:
Optical isotropy/anisotropy: Biaxial
Optical sign: -
Refractive indices: α = 1.584, β = 1.620, γ = 1.621
Bireflectance/Birefringence δ: 0.037
2V angle: 19° (measured), 18° (calculated)
Dispersion:
Optical orientation:
Optical axial plane:
| Back to Alphabetical list | Colour photos | Physical, chemical and crystallographic description | SEM images | TEM images | vibrational spectra description | IR spectra | Raman spectra | N-IR spectra | F-IR spectra | IES spectra |