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

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. 82288
Mineral:Birnessite pseudomorph after Serandite
Locality:Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Description:Sharp, well defined black birnessite pseudomorph after a prismatic 19 mm serandite crystal. The serandite crystallized first, then altered molecule by molecule to birnessite, while maintaining the original serandite shape. Pseudomorph = false form. Ex. Miller collection T698; ex. E. Greene private collection OXI-56; ex. Frank Melanson
Overall Size:20x8x5 mm
Crystals:19 mm pseudo
Archived: For reference only

 

 

 

 

 

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