Suyash posted an Question
September 09, 2020 • 22:53 pm 30 points
  • IIT JAM
  • Geology (GG)

A mineral that is trichroic must Options 1 or 3 ??

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    Sajan sarthak best-answer

    trichoric:- 3 colour 2.4 . isometric and isotopic will not have any inteference color. so Elliminated. as light will have same property in all directions. Isometric minerals cannot exhibit pleochroism. 3.Orthorhombic, monoclinic and triclinic crystals can show three and are trichroic. For example, hypersthene, with two optical axes, can have red, yellow or blue appearance when oriented in three different ways in three-dimensional space. both 1 and 3 can be answers

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