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Negative Biaxial Interference
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Description: "A negative biaxial interference figure. The arrows indicate the movement taking place upon inserting a quartz wedge above the section. Epidote. (-)." -Johannsen, 1908
Source: Johannsen, Albert Rock-Forming Minerals in Thin Sections (New York: John Wiley & Sons, 1908) 42
Keywords: rock-forming minerals, crystal optics, quartz wedge, crystal movement, negative biaxial interference figure, epidote
Copyright: 2009, Florida Center for Instructional Technology. See license.
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