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Optic Axis

This topic contains 2 replies, has 2 voices, and was last updated by Profile photo of adam333 adam333 7 months, 1 week ago.

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  • #204275
    Profile photo of adam333
    adam333
    Participant

    Does anyone know if you would use a polariscope to find the Optic Axis of a Crystal?

    #204638
    Profile photo of sydp
    sydp
    Participant

    Hi Adam, the Optic Axis of a gemstone is directly down the Crystal from top to bottom.
    If you have a crystal that is broken or waterworn and place it on the polarscope to identify it is doubly refractive (anistropic) then you need to rotate the stone to all angles until it does not blink 4 times in a 360 degree rotation if it stays static and does not blink then you have orientated the gem directly down the Optic Axis

    hope this helps

    #204734
    Profile photo of adam333
    adam333
    Participant

    Thank You for taking the time to reply. It helps greatly. Many Thanks.

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