( 
78 ALASKAN MINERAL RESOURCES IN 1906. 
much of the rock and in a few places exceeds in amount the horn 
blende. Quartz is commonly present, though usually in smal 
amounts. The accessory components are apatite, titanite, and mag 
netite; secondary minerals, due to general metamorphism, are seri 
cite, epidote, zoisite, chlorite, and calcite. Petrographically much o J J 
the rock is related more closely to the diorites than to the granites anc I 
is usually referred to as a diorite. 
The prevailing color of the granite is a light gray and only in a fe/R 
places were pink or reddish masses observed. The grains of the com- 
ponent minerals are ordinarily of medium size, not varying greatly ir 
the different localities. Evidence of the durability of the granite h 
afforded in many places where long exposure to the influence of weath- 
ering has caused little or no disintegration of the surface. 
MARKET. 
No attempt has yet been made to quarry or even investigate tin 1 
Alaskan granite. There is practically no market in Alaska for thw 
stone, and along the Pacific coast to the south the demand has beei 
supplied by the quarries in the States of Washington, Oregon, am 
California. 
The long haul necessary to the market appears at first unfavorable 
to granite quarrying along this portion of the northwest coast, but thji| 
present freight rate of less than $2 per ton to Puget Sound is no 
greater than the cost of the transportation from some of the quarrie 
in California to the larger cities. The cost for quarrying the stone 1 
the State of Washington is estimated at 35 cents per cubic foot, an< 
the proportion of marketable rock obtained from the amount quarriJ 
is about 60 per cent. 
The value of the production of granite from States along the wes 
coast amounted to nearly a million dollars in 1905. The averag 
selling price per cubic foot for building and monumental purposes a 
the quarries in these States is given in the following table: 
Average selling pria per cubic foot of granite at the quarries in Pacific coast States. 
Rough. 
Dressed. 
For curb- 
ing. 
California 
$1.10 
.60 
.65 
$5.20 
2. 20 
4.00 
$0.' 
.! 
l.< 
Washington 
Oregon 
The above prices do not include the cost of transportation, whic 
is from $0.50 to $3 per ton from the quarries to the cities. Thi 
adds from 5 to 30 cents to the cost per cubic foot. 
