Canada

3539 Ancylite-(Ce), Albite, Aegirine, Burbankite, Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Colourless to greyish, and pinky-orange crystals of ancylite-(Ce), or possibly calcioancylite in small cavities in albite. In the second photo, white (probable) calcioburbankite (Type Locality). You can see the hexagonal cross section if you look closely. The label said burbankite. Width of view 3mm and stack of 50 images (ancylite)...

ncat ANK MSH126 Rhodochrosite, Aegirine, Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Deep sharp red-brown rhombohedral crystals, one perched on aegirine crystal. There are also colourless reticulated crystals below right of centre. Maybe albite? One small area on top of rhodochrosite (not in photo) fluoresces orange. Ex Noel and Ann Kennon Collection. Ex Jean Pierre Beckerich. Width of view 11.5mm. Stack of...

ncat ANK MSH147 Calcioburbankite, Petersenite-(Ce), Siderite, Hilairite(?), Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

As with many MSH specimens, you don’t always know what you’ve got! White to tan calcioburbankite on hexagonal prismatic petersenite-(Ce). Many of the brown crystals, the lighter ones, are siderite, but some, the darker brown ones, fluoresce orange, maybe hilairite? There are tiny thin plates of an unidentified mineral that...