Sharp, rhombic crystals of Calcite with translucent golden coloration on a diabase matrix. typical of the specimens from the Dyer Quarry, Birdsboro, Berks Co, Pennsylvania. These calcites also exhibit a bright yellowish fluorescent response under SWUV Light. Collected in 2004 at level 6. Specimen size: 5.5 x 4.2cm. From the PA Annex of my personal collection, acquired in 2005.