ncat ANK MSH110 Elpidite, Gaidonnayite, Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Elpidite greenish and bright fluorescent green under longwave UV, gaidonnayite (not in photo) clear. Ex Noel and Ann Kennon Collection. Ex Jean Pierre Beckerich. Width of view 11.5mm. Stack of 57 images (white light) and only 9 images (UV).

Use the slider on the photo below to compare the white light and UV images. Click here for a higher resolution version.