WALKER VALLEY
Mount Vernon, Skagit County, Washington, USA

LOCALITY IMAGES

GEOLOGY
http://wa-dnr.s3.amazonaws.com/publications/ger_washington_geology_1996_v24_no1.pdf
http://wa-dnr.s3.amazonaws.com/publications/ger_washington_geology_1996_v24_no4.pdf


MINERALS
*Calcite-
CaCO3 -
Hisingerite-
Fe23+(Si2O5)(OH)4 · 2H2O -
Goethite-
HFeO2 -
*Quartz-
SiO2 -
*Siderite-
FeCO3 -

* photographed
 
QUARTZ, CALCITE
 
SIDERITE

REFERENCES

Mustoe, G. E., D. G. Vandenburg, & L. M. Vandenburg (1996a). The Minerals of Walker Valley, Skagit County, Washington. Washington Geology v. 24, n. 1 (March 1996), pp 22-29.
Mustoe, G. E. (1996b). Hisingerite—a rare iron mineral from Walker Valley, Skagit County, Washington. Washington Geology v. 24, n. 4 (December, 1996), pp 14-19.