Pleochroism
The display of different colours along different crystal axes, seen as a stone is rotated in one fixed light. Distinct from colour change, which depends on the light source. Colour-change diaspore is strongly pleochroic.
The display of different colours along different crystal axes, seen as a stone is rotated in one fixed light. Distinct from colour change, which depends on the light source. Colour-change diaspore is strongly pleochroic.
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