AMBER, MALACHITE, LAPIS-LAZULI AND AZURITE 



FOBD, CHICAGO. 



Lapis-lazuli, polished (Siberia). 



517 



Malachite and Azurite. polished (Arizona). 

 Malachite, polislied (Austra.ia). 



Amber polished, showing Insects enclosed (Coast of Baltic Sea). 



Amber, rolled pebble (Coast.of Baltic Sea). 



Malachite, polished (Ural Mountains). 

 Malachite (Arizona). 



