Extinction Angles

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“Extinction angles on the (001) faces of the lime-soda feldspars.” -Johannsen, 1908

Keywords

rock-forming minerals, extinction angles, crystal shapes, 001 faces, lime-soda feldspars

Galleries

Miscellaneous Optics

Source

Albert Johannsen A Key for the Determination of Rock-Forming Minerals in Thin Sections (New York, NY: John Wiley & Sons, 1908)

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