Quintinite from Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

X83-RDKQuintinite Mg₄Al₂(OH)₁₂(CO₃)·3H₂O

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Dimensions: 1.7 cm x 1 cm x 1 cm
Field of View: .35 cm

This is a micromount specimen of quintinite from the Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada. I acquired the specimen from Don Smoley at the 2025 Erie mineral show. This specimen was in the former collection of Robert Rothenberg (1943-2021): #06497 - 06.

Jamison K. Brizendine specimen and photo.

8DE-P5CQuintinite Mg₄Al₂(OH)₁₂(CO₃)·3H₂O

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Dimensions: 1.5 cm x 1.5 cm x 1.5 cm
Field of View: .3 cm

This is a micromount specimen of quintinite from the Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada. I acquired the specimen from Don Smoley at the 2025 Erie mineral show. This specimen was in the former collection of Robert Rothenberg (1943-2021): #06497 - 12.

Jamison K. Brizendine specimen and photo.

XMQ-1T8Quintinite Mg₄Al₂(OH)₁₂(CO₃)·3H₂O

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Field of View: 1.4 mm

FOV 1.4 x 2.0 mm. Via JPB (From Horvath)

Very pale yellowish - almost colorless - quintinite.

Even in "real life" the specimen has very low contrast making xls hard to distinguish. The photo only works in stereo.

The child photos use lower magnification and/or different lighting.

QT6-2GKQuintinite Mg₄Al₂(OH)₁₂(CO₃)·3H₂O

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

FOV 2,5 mm. Collection and photo Stephan Wolfsried

LJF-7AVQuintinite Mg₄Al₂(OH)₁₂(CO₃)·3H₂O , Parisite-(Ce) CaCe₂(CO₃)₃F₂

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Field of View: 1.8 mm

This brown crystal has been identified as quintinite. There are tiny white balls of parisite on it. They were collected on 5/29/1993.

1GF-5NLQuintinite Mg₄Al₂(OH)₁₂(CO₃)·3H₂O

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Platy quintinite xls. FOV 2mm. JBS specimen and photo.

6QC-JURQuintinite-3T Mg₄Al₂(OH)₁₂CO₃·4H₂O

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Field of View: 1.5 mm

Sony Nex 7, bellows, Mitutoyo BD Plan 20xSL , stack shot

KEN-P6FQuintinite-3T Mg₄Al₂(OH)₁₂CO₃·4H₂O

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Field of View: 1.1 mm

Stack of pale yellow quintinite crystals.
Photographed by and in the collection of Doug Merson.
Obtained from László Horváth

K1G-0UPQuintinite-3T Mg₄Al₂(OH)₁₂CO₃·4H₂O

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Ex Horvath Coll. Picture width 2 mm. Collection and photo Stephan Wolfsried

7U6-H13Quintinite-3T Mg₄Al₂(OH)₁₂CO₃·4H₂O

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Field of View: 3 mm

Sony Nex 7, bellows, Mitutoyo M Plan Apo 10x, aperture, Raynox DCR-250 retro, THK linear actor, stack shot control,
Collection and Photo Stephan Wolfsried