Wednesday, September 10, 2014

Esoterizona Stones 25

Fluorescent Minerals

This rock has 3 layers of fluorescent material.  Fluorescent blue mats of calcite crystals and a coating of orange caliche are laid over a matrix that fluoresces a dull magenta - could be weak calcite or possibly smithsonite.  SW & LW UV.  4"x3"x2" (Pima County)

The next four photos show two different expressions of the fluorescent mineral powellite.  The first is brightly luminescent, pale yellow-colored clusters - response is to SWUV only.  The second has a more evenly distributed, dusted appearance.
4"x3"x2" (Pima County)

4"x5"x2" (Pima County)

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