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Birnessite pseudomorphs after Serandite from Poudrette Quarry, Mont Saint-Hilaire, Quebec, Canada

 
Birnessite pseudomorphs after Serandite from Poudrette Quarry, Mont Saint-Hilaire, Quebec, Canada

DESCRIPTION:No. 40831
Mineral:Birnessite pseudomorphs after Serandite
Locality:Poudrette Quarry, Mont Saint-Hilaire, Quebec, Canada
Description:Compact mass of black birnessite pseudomorphs after prismatic serandite crystals up to 23 mm long with no matrix attached. The birnessite replaced the serandite atom by atom maintaining the crystal form but changing the composition. Ex. Steve Chamberlain collection #7915; ex. National Museum of Natural Sciences of Canada
Overall Size:35x25x13 mm
Crystals:10-23 mm
Status: Sold - Posted here for reference only
Buy similar: Minerals from Canada > Pseudomorphs (False Form)

 

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  John Betts - Fine Minerals gallery of Pseudomorphs (False Form)

 

 

 

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