| Chelan County | ||
| Lake Wenatchee | actinolite | |
| Rock Island Dam | paulingite-K | |
| King County | ||
| Gifford Lakes | schultenite | |
| Kittita County | electrum | |
| Okanogan County | ||
| Washington Pass | elpidite, mountain leather, okanoganite-(Y), zektzerite | |
| Olympic Mountains | bementite, neotocite | |
| Pend Oreille | ||
| Metaline Falls | mountain leather | |
| Skamania County | ||
| Rock Creek | mordenite | |
| Snohomish County | ||
| Mackinaw | mackinawite | |
| Vesper Peak | wollastonite | |
| Weden Creek | euchroite | |
| Spokane County | ||
| Daybreak Mine | autunite | |
| Stevens County | coffinite, phosphuranylite | |
| Cleveland Mine | boulangerite | |
| Germania Mine | ferritungstite, galenobismutite, pekoite | |
| Wahkiakum County | ||
| Altoona | ferrierite-Na | |