Proceedings U. S. National Museum, Vol. XI, 1888.— Clarke & Merrill. 



Plate XXXIII. 



Hi 



MlCROSTRUCTURE OF NEPHRITE AND JADEITE. (Page 115.) 



Fig. 1. Nephrite, New Zealand. 2 r 5 . 

 Fig. 2. Nephrite, Alaska. *?-. 



Fig. 3. Nephrite, Siberia. y. 

 Fig. 4. Jadeite, Oaxaca, Mexico. 



