96 
ALASKA GEOLOGY 
Mineral . 
Occurrence. 
Locality. 
Silicified wood 
In tuff 
Unga Island 
Sphalerite 
In copper ore 
u 
u 
Landlocked Bay, Prince William 
Sound. 
Virgin Bay, Prince William 
Sound. 
Latouche Id., Prince William 
Sound. 
Sphalerite 
In copper ore 
In gold ore 
it 
Banks Island, B. C. 
Apollo mine, Unga Island. 
Cordova Bay, Prince William 
Sound. 
Staurolite 
In mica schist 
(boulder) 
Hugh Miller Inlet, Glacier Bay. 
Tremolite 
In limestone 
Reid Glacier, Glacier Bay. 
Zoisite 
In limestone 
(boulder) 
Hugh Miller Inlet, Glacier Bay. 
