This specimen is the brightest yellow of the lot I acquired. Under halogen lighting it is a saturated yellow and under LED lighting (3500/5000K mix, or higher) it is bright, almost electric. The crystals are sharp and have good transulcence. Overall in excellent condition with minor imperfections visible on close inspection, and the miners repaired one damaged crystal that is mostly complete (this is reflected in the price – that crystal is part way down the left edge, and it’s shown in the centre of the fourth photo). With good display lighting, this fluorite truly glows from inside the display case.

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About These El Hammam Mine Fluorites

The El Hammam Mine has long been a well-known locality for fluorite specimens. This recent small pocket has produced unusually fine sharp yellow crystals.

The hue of these fluorites varies, depending on the light source (common for fluorite), from a warmer honey-yellow under halogen, to a slightly brighter yellow in daylight and even a bit bolder under cool-temperature LED lighting. (This effect is different with each specimen, some show it more and some less). The depth of the yellow colour also varies from one specimen to the next thanks to the fine, faint purple phantoms in many of the crystals.