Geologist Ends 30-Year Friendship Over Misidentification of Feldspar as Quartz

Dr. Margaret Schist, a petrologist with thirty years of field experience, has formally severed her relationship with longtime friend and fellow geologist Dr. Harold Gneiss after he identified a specimen of orthoclase feldspar as milky quartz at a neighborhood barbecue on Saturday. 'It was pink,' Dr. Schist told reporters, her voice shaking. 'It had perfect cleavage at 90 degrees. It was sitting in a granite matrix. Every single diagnostic indicator pointed to feldspar. A first-year student would have gotten this right. Harold has a PhD.' Dr. Gneiss, who specializes in sedimentary rather than igneous rocks, has acknowledged the error but maintains it was 'an honest mistake made in poor lighting conditions.' 'We were at a barbecue,' he said. 'The sun was setting. I glanced at it. I made a snap identification. This is not a peer-reviewed setting. There should be a reasonable expectation of mineralogical grace at social events.' Dr. Schist rejected this defense. 'Mineral identification is not context-dependent. Feldspar does not become quartz because you're holding a hot dog. The Mohs scale doesn't relax on weekends.' The dispute has divided their shared social circle, with sedimentary geologists generally siding with Dr. Gneiss and igneous petrologists supporting Dr. Schist. Metamorphic geologists have declined to take sides, noting that 'given enough heat and pressure, all friendships transform.' Dr. Gneiss has sent an apology letter that includes a hand-drawn diagram of feldspar crystal structure, which Dr. Schist described as 'too little, too late, and the angles are wrong.'