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K-feldspar tutorial Optical mineralogy
3:02
YouTubeMatt Kohn
K-feldspar tutorial Optical mineralogy
Several videos of K-feldspar in thin section, showing typical textures and optical characteristics. Supported by Boise State University and the US National Science Foundation. Key characteristics: Relief very slightly lower than quartz (subtle), clear in plane-polarized light, with no pleochroism, low interference colors (white), tartan ...
21.4K viewsMay 3, 2021
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