FMF Minerals Gallery

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Calcite + stilbite. The only decent specimen showing the third habit of calcite at this locality. A ’butterfly’ twinned and flattened scalenohedral crystal measuring 25mm x 19mm is partially coated with micro stilbites, as is the more common elongated scalenohedral ’dog-tooth’ habit of crystal. The later more simple rhombohedral calcites appear to have been deposited after the earlier forms af calcite were covered with the micro stilbite crystals. Specimen measures 80mm wide (not all shown in the photo) x 45mm high x 40mm deep. Self-collected 1998 from Camas na h-Uamha, Duirinish, Isle of Skye. (Author: Mike Wood)