Kaolinite, Orthoclase
North Goonbarrow China Clay Pit, Roche, Cornwall, England, UK
A pristine, classic, and important pseudomorph of kaolinite after orthoclase from the St. Austell District of Cornwall. A very sharp, fully terminated, Carlsbad-twinned orthoclase crystal has been mostly pseudomorphed by kaolinite and retains every detail of the original orthoclase: crystal faces, edge, and twin details. A specimen from one of ...
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