ncat ANK MSH100 Hilairite, Gaidonnayite, Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Type Locality for hilairite. Brown hilairite with colourless/grey twinned gaidonnayite. Hilairite fluoresce green under longwave UV, but gaidonnayite doesn’t appear to respond. Ex Noel and Ann Kennon Collection. Ex Jean Pierre Beckerich. Width of view 11.5mm. Stack of 114 images.

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