Uniaxial Interference Small 319×320 Medium 637×640 Large 1019×1024 Download Tiff Original 2389×2400 | (276.2 KB) Description "A positive uniaxial interference figure. The arrows indicate the movement taking place upon inserting a quartz wedge above the section." -Johannsen, 1908 Keywords crystal movement, crystal optics, quartz wedge, rock-forming minerals, uniaxial interference figure 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)
