In this view – the same specimen as in photo DPS11a, but under SW ultraviolet light – both the distribution of the diopside grains and their margins against the enclosing marble are distinct. The blue “haze” around some of the diopside grains results from transmittal through the enclosing, slightly translucent calcite of some of the blue light emitted by the diopside.
Identifier: DPS11b Locality: Franklin Marble, Sussex County Specimen size: 8.5 x 6 x 4 cm Photo credit: Earl R. Verbeek
