Orthoclase Crystal Small 165×320 Medium 331×640 Large 529×1024 Download Tiff Original 1241×2400 | (278.5 KB) Description A simple orthoclase crystal. Keywords chemistry shapes, crystal shapes, rock-forming minerals, simple orthoclase crystal Galleries Crystals Source: Albert Johannsen A Key for the Determination of Rock-Forming Minerals in Thin Sections (New York, NY: John Wiley & Sons, 1908)
