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

Search

 

Online Mineral Museum Archive of Mineral Photographs and Mineral Descriptions from John Betts - 
Fine Minerals.com and Allminerals.com

   

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

 

 

 

 

 

© AllMinerals/JohnBetts-FineMinerals All Rights Reserved

The minerals illustrated on this site are presented for reference purposes only. The owner of this site did not collect the minerals and collectors should not assume access is permitted to the property based on inclusion in this museum. Please contact the property owner to obtain legal permission before entering private property. ;