Orthoclase from Whatcom County, Washington, USA
USA | |
| Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA. Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA. |
| Moen, W. (1969) Mines and Mineral Deposits of Whatcom County, Washington. Washington Division of Mines and Geology Bulletin 57, 134 pages. |