Clarity : Clean to the eye, tiny inclusions visible under x10 magnifying glass.
Hardness : 7-7.5
Treatment : None
Origin : India
Comment : Very particular stone because of its pleochroism visible to the naked eye (generally we use a dichroscope to see it). By turning the stone, some parts change from blue-violet to colorless. Quite surprising the first time you observe the phenomenon. Stone which must be in any good collection but can also be worn as jewelry.
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