Procedures for optical analysis of minerals with parallel light

firstly, we observe the crystals in plane polarized light (1P). We study:
  1. Transparency
  2. Colour
  3. Pleochroism
  4. Habit
  5. Relief
  6. Cleavage, fracture
  7. Inclusions
  8. Alternations

After that, we study minerals in crossed polarised light (PX):
  1. Isotropic or anisotropic
  2. Extinction
  3. Interference colours
  4. Distinguishing Features

» Glossary