AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from England > Montmorillonite pseudomorph after Natrolite

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Montmorillonite pseudomorph after Natrolite from Dean Quarry, St. Keverne, Cornwall, England

 
Montmorillonite pseudomorph after Natrolite from Dean Quarry, St. Keverne, Cornwall, England

Montmorillonite pseudomorph after Natrolite from Dean Quarry, St. Keverne, Cornwall, England

DESCRIPTION:No. 30349
Mineral:Montmorillonite pseudomorph after Natrolite
Locality:Dean Quarry, St. Keverne, Cornwall, England
Description:Vein in matrix that had an internal cavity allowing formation of complete crystals of natrolite. All natrolite has now been replaced with pseudomorphs of montmorillonite, but the original crystal forms are distinct. Ex. Robert Karr collection (California)
Overall Size:10x7x2 cm
Crystals:3-10 mm
Archived: For reference only

 

 

 

 

 

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