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Large calcite crystals and perfect apatite crystals sit atop a matrix of pyrite. The apatite glows a lilac under midwave UV. The calcite exhibits brief intense phosphorescence.
Brief intense phosphorescence, or “BIP”, is a phenomenon where for a brief moment immediately after the shortwave lamp is turned off, it displays a very short-lived, but bright phosphorescence or flash. It’s very difficult to capture this in the photos. Typical for manganese activated calcites.
