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Thomasclarkite-(Y) : (Na,Ce)(Y,REE)[(OH)3|HCO3] · 4H2O | |
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Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada Photographed by and in the collection of Doug Merson. |
| © 2005 DM | Photo ID: 32069 View Count: 388 |
Thomasclarkite-(Y) : (Na,Ce)(Y,REE)[(OH)3|HCO3] · 4H2O | |
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Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada Picture width 3 mm. Collection and photograph Stephan Wolfsried |
| © Stephan Wolfsried | Photo ID: 40240 View Count: 342 |
Thomasclarkite-(Y) : (Na,Ce)(Y,REE)[(OH)3|HCO3] · 4H2O | |
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Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada Self collected by Modris Baum April 1998. FOV 2.2 x 1.4 mm. This is typical of thomasclarkite-(Y) from the Poudrette pegmatite. Compare with the thomasclarkite-(Y) found in sodalite syenite (photos #163793 and #164750). |
| Photo ID: 164751 View Count: 102 | |
Thomasclarkite-(Y) : (Na,Ce)(Y,REE)[(OH)3|HCO3] · 4H2O, Adamsite-(Y) : NaY[CO3]2 · 6H2O | |
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Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada A .4mm xl of thomasclarkite-Y on adamsite-Y needles. JBS specimen and photo. |
| © 2004 JBS | Photo ID: 19132 View Count: 507 |
Thomasclarkite-(Y) : (Na,Ce)(Y,REE)[(OH)3|HCO3] · 4H2O, Franconite : Na2Nb4O11·9H2O | |
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Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada Picture width 6 mm. Collection and photograph Stephan Wolfsried |
| © Stephan Wolfsried | Photo ID: 34451 View Count: 331 |
Thomasclarkite-(Y) : (Na,Ce)(Y,REE)[(OH)3|HCO3] · 4H2O | |
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Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada Photographed by and in the collection of Doug Merson. |
| © 2005 DM | Photo ID: 32068 View Count: 314 |
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Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada Modris Baum collection. Probably 1995. FOV 3.3 x 2.2 mm. This association with petersenite-(Ce) appears to have been more common in the early finds. Thomasclarkite-(Y) has also been found with adamsite-(Y). This is not an analyzed specimen so the petersenite-(Ce) is an educated guess. The child photo is a closer up stereo view. |
| Photo ID: 164753 View Count: 136 | |
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Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada Brownish crystals of thomasclarkite-(Y) in a small veinlet. Sample contains also white adamsite-(Y) spray. Field of view is 2.2 mm. |
| © Ł Kruszewski 2007 | Photo ID: 133721 View Count: 132 |
Thomasclarkite-(Y) : (Na,Ce)(Y,REE)[(OH)3|HCO3] · 4H2O | |
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Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada Field of view 4 mm. Specimen and photo Leon Hupperichs. |
| © Leon Hupperichs | Photo ID: 107522 View Count: 125 |
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Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada Self collected by Modris Baum Nov 2001. FOV 1.4 x 1.8 mm. The next photo has a different (and stereoscopic) view. This very unusual find was made in sodalite syenite rather than in the "Poudrette" pegmatite. The only significant associated minerals were analcime and ilmenite. In particular there was no aegirine in the cavities. The ... |
| Photo ID: 163793 View Count: 117 | |
Additional Photos | |
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