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*Note: Please make sure to right-click and print (or save) ID card located in the photo gallery for your records*
We’ve never seen crystalized calcite such as this piece from Challenger Cave. There are many clusters of well-formed calcite crystals fluorescent under all wavelengths and this piece is phosphorescent. We are accustomed to the very phosphorescent rhombs. These pieces display a “BIP”*.
*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.
