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August 1 eNews Mini-Quiz Question

This topic contains 2 replies, has 3 voices, and was last updated by Profile photo of dinkydragon dinkydragon 1 year, 1 month ago.

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  • #199127
    Profile photo of msalguero
    msalguero
    Participant

    You have a purple gem. When you place it in the polariscope, it turns red but you still see occasional flashes of purple. However, you do not get a distinct light/dark reaction. It stays mostly dark except for areas of windowing. What kind of gem is this?

    #199169
    Profile photo of wpond
    wpond
    Participant

    Is this gem tanzanite.

    #199195
    Profile photo of dinkydragon
    dinkydragon
    Participant

    Is it iolite?

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