Arfvedsonite : [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2

Copyright © 2000-2002 by John H. Betts. All Rights Reserved.
This photo, and many others, have been provided by John Betts Fine Minerals - http://www.johnbetts-fineminerals.com - For more fine minerals click here.
minID: PE0-QDE

Arfvedsonite : [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2

Dimensions: 8 cm x 3 cm x 3 cm

Many long crystals of black arfvedsonite in white matrix. Good old-time specimen. Ex. R. D. O'Donnell collection #568. Overall size of mineral specimen: 8x3x3 cm. Size of individual crystals: 5-50 mm.

This photo has been shown 1287 times