AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Canada > Birnessite pseudomorph after Serandite

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Birnessite pseudomorph after Serandite from Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada

 
Birnessite pseudomorph after Serandite from Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada

DESCRIPTION:No. 56838
Mineral:Birnessite pseudomorph after Serandite
Locality:Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Description:Black birnessite pseudomorph after a prismatic 19 mm serandite crystals with no matrix attached. The serandite crystallized first, the birnessite replaced the serandite atom by atom maintaining the crystal form but changing the composition.
Overall Size:19x9x4 mm
Crystals:19 mm pseudo
Archived: For reference only

 

 

 

 

 

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