Skip to Content

10 Common Rocks & Minerals You Can Find in Washington State

As an Amazon Associate, I earn from qualifying purchases with no additional costs for you.

Even if you know your way around Virginia, insight and additional information always come in handy during a rockhounding excursion. This guide is for rockhounds of all skill levels who want to collect the many treasures that lie waiting in Virginia.

Did you know that Washington State is one of the best places in the U.S. for rockhounding? There’s a wide variety of rocks, minerals, and gems in this state, as you’ll soon discover in this guide.

The common rocks and minerals of the Evergreen State include:

  • geode,
  • agate,
  • opalized wood,
  • jasper,
  • fossils,
  • jade,
  • quartz,
  • opal,
  • gold,
  • and carnelian.

Until you’ve been on multiple rockhounding excursions in a state, you never really know what rocks and minerals to expect. The information provided in this guide will help both new and experienced rockhounds find everything they are looking for and more in Washington State.

Common Rocks and Minerals in Washington State
Common Rocks and Minerals in Washington State

If you are interested in checking out the best rockhounding tools you can find them by clicking here (Amazon link).

What Rocks Are Found in Washington State

In Washington State, rockhounds can collect geodes, agates, petrified wood, and much more:


LocationGPS Coordinates
Walker Valley48.404846, -122.212487
Lucas Creek46.646540, -122.715498
Toledo46.440148, -122.844992
Newaukum River46.616995, -122.934694
Chehalis River46.810611, -123.243802
Kittitas County47.241660, -121.072314
Cowlitz County46.186361, -123.199998
Where to Find Geode in Washington State

As you explore the Evergreen State, you’ll probably come across many different types of geodes and thundereggs.

Inside Washington geodes, you might find quartz, blue agate, blue chalcedony, and amethyst. Geodes from this state come in all shapes and sizes, and since they are so abundant, rockhounds typically return home with more than one.

Walker Valley is a famous area for Washington geodes, and you can also search Lucas Creek, Toledo, or the Newaukum River. The rivers and creeks of Kittitas County and Cowlitz County tend to have plenty of geodes as well.


LocationGPS Coordinates
Long Beach46.342664, -124.065527
Ocean Park46.483929, -124.058618
Columbia River47.423278, -120.386821
Damon Point46.945191, -124.117615
Agate Beach48.420156, -122.860722
Mount Adams46.201892, -121.491135
Red Top Mountain47.300998, -120.760359
Where to Find Agate in Washington State

The agates from Washington State display all kinds of lovely colors, including amber, red, white, blue, gray, and black. Southwestern Washington is, without a doubt, the best area to go for agates, but these rocks do exist throughout the entire state.

Agates can be found all over Washington State, but some of the most amazing finds have washed up on the beaches in this state. Explore Long Beach, Ocean Park, and the Columbia River to collect these colorful stones. 

Opalized wood

Opalized Wood
Opalized Wood
LocationGPS Coordinates
Columbia River47.447998, -120.325315
Horse Heaven Hills46.133068, -119.868114
Saddle Mountain46.806597, -119.557636
Grand Coulee47.940892, -119.017628
Moses Coulee47.452297, -119.814664
Petrified Forest State Park (surrounding areas)46.978484, -120.013860
Where to Find Opalized Wood in Washington State

Because Washington State has a decent amount of volcanic activity, it’s overflowing with petrified wood and opalized wood. Fortunately, opalized wood is just as common as petrified wood in this state, so rockhounds have a high chance of finding this popular stone.

Central and eastern Washington tend to have the most petrified wood and opalized wood specimens. Stop by the Columbia River, Horse Heaven Hills, or Saddle Mountain for this collectible rock.

Recommendation box: All tools and equipment you need for rockhounding and rock identification* (Amazon links):

1. Estwing Rock Hammer – Light, comfortable, and extremely durable hammer.
2. Estwing Geologist Pick – Classic and the most trusted paleo pick in the world.
3. Finder 12-inch Chisels – Heavy-duty chisels set with hand protection.
4. Mini Handle Shovel – This is a great tool for digging deep in the dirt.
5 Ironclad Utility Work Gloves – Breathable, but they also protect the areas requiring them most.
6. 3M Safety Glasses – Comfortable and efficient goggles for rockhounding.
7. Convoy 8+ UV Light – 365nm UV LED flashlight with a patented glass filter.
8. Wesley’s Jewelers Loupe – High magnification options (30X and 60X) with carrying case.
9. Mohs Hardness Kit – A specially designed kit for rockhounds

*All recommended products are personally tested and regularly used by experts from this website.


LocationGPS Coordinates
Dungeness48.146530, -123.123276
La Push47.907890, -124.640692
Sol Duc River47.935522, -123.774136
Crescent Beach48.695557, -122.896730
Aberdeen46.965688, -123.829457
Kalaloch47.605509, -124.371363
Lucas Creek46.648426, -122.719103
Where to Find Jasper in Washington State

Washington State has many types of jaspers, but one of the most sought-after kinds is Orbicular Jasper, also called Poppy Jasper. While jaspers are spread throughout the state, the shores of the Pacific Ocean possess many of these colorful rocks.

For Washington jaspers, visit La Push, Sol Duc River, and Crescent Beach. Aberdeen and Kalaloch also have some quality specimens for rockhounds.


LocationGPS Coordinates
Murdock Beach48.154159, -123.861392
Ginko Petrified Forest (surrounding areas)46.954599, -119.987339
Willapa River46.654357, -123.731251
Eocene Fossil Site48.647866, -118.738724
Lebam46.562110, -123.548191
Where to Find Fossils in Washington State

The state fossil of Washington is the mammoth, which lived over a million years ago. Mammoth tusks, skeletons, and teeth are scattered throughout the Olympic Peninsula, along with many other ancient fossils. Plant and marine fossils are what most rockhounds usually find in this state, and they are plentiful along the beaches. 

The beaches of this state are treasure troves for fossils, especially Murdock Beach, which is known for its mammoth fossils.


LocationGPS Coordinates
Whidby Island48.179380, -122.654279
Bridgeport48.006168, -119.665300
Deer Creek48.104980, -121.575457
Clallam Bay48.256817, -124.256050
Nooksack River48.928056, -122.312839
Where to Find Jade in Washington State

Washington State has produced some gorgeous nephrite jade stones, and it’s also one of the few places in the world where rockhounds can find botryoidal jade. Botryoidal jade occurs when the surface of the stone appears to have tiny bubbles, and the color ranges from blue to green.

There are many areas in Washington where rockhounds can pick up jade, but none are as famous as Whidby Island, which produces some of the most beautiful jade in the state.

TIP: Jade can occur in a surprisingly significant number of colors, not only green. Find out more in the article below:
All Jade Color Varieties (Description & Explanation)

What Minerals Are Found in Washington State

Now that we’ve gone over the rocks of Washington State, it’s time to go over the minerals:


Smoky Quartz
Smoky Quartz
LocationGPS Coordinates
Kittitas County47.110972, -120.833361
Lewis County46.558727, -122.596645
Okanogan County48.383168, -120.069998
Clay City46.925159, -122.255604
Newport48.187306, -117.042675
Little Spokane River47.770638, -117.448597
Tunk Creek48.529263, -119.371900
Where to Find Quartz in Washington State

In Washington State, rockhounds collect amethyst, clear quartz, and smoky quartz. Of these three varieties, clear quartz is the most abundant, but even though amethysts and smoky quartz specimens are not as common as clear, they are frequently found throughout the state. All these types of quartz can be found on their own in Washington or inside geodes.

If you visit the mountains of Okanogan County or the banks of the Little Spokane River, you’re highly likely to find some quality smoky quartz, clear quartz, or amethyst crystals.


LocationGPS Coordinates
Horse Heaven Hills46.132860, -119.868329
Waterville47.645045, -120.070110
Mondovi47.681008, -118.016227
Pullman46.723360, -117.190259
Moses Coulee47.452181, -119.814879
Columbia River47.449742, -120.289807
Where to Find Opal in Washington State

Precious opals, fire opals, and opalized wood are popular finds in Washington State, and there was even a short-lived opal rush near Whelan.

Unfortunately, most of the opals from this area were all collected during the rush, but some collectors come across this gem every now and then in this area.

While this location may not have as many opals as it used to, there are plenty of areas in Washington that have more than enough opalized wood and precious opals for rockhounds. 

Hunting for fire opals? Stop by Pullman or Mondovi. Precious opals can be found in Mondovi and Waterville, and petrified wood is collected from the Columbia River and Horse Heaven Hills.


LocationGPS Coordinates
Shi Shi Beach48.259469, -124.682655
Snake River46.115055, -116.961803
Gold Creek47.555228, -122.819923
Lyman Lake48.192470, -120.907387
American River46.975714, -121.161837
Columbia River47.445573, -120.328635
Where to Find Gold in Washington State

As you travel in Washington State, you might see other rockhounds and collectors panning for gold in the rivers and creeks.

Gold is plentiful in Washington, and you might find it in the rivers, creeks, and beaches. River mouths are popular spots for prospecting in this state since many precious metals gather in the gravels and sands.

Pan for Washington gold in the Snake River, American River, or Shi Shi Beach. As mentioned, river mouths often contain many metals and minerals, so be sure to check them out if you have time.

TIP: Gold prospecting is a beloved pastime for many outdoor enthusiasts, and Washington State offers many opportunities for those seeking to strike it rich. Find out more below:
Gold Prospecting in Washington: 6 Best Locations & Laws


LocationGPS Coordinates
Lucas Creek46.646894, -122.715670
Bickleton45.995394, -120.302394
Mt. Adams46.202011, -121.491221
Chehalis River46.819043, -123.265862
Green Creek46.592608, -123.583342
Where to Find Carnelian in Washington State

Carnelian, a reddish-brown semi-precious stone, is regularly found by rockhounds in the Evergreen State. While you can collect carnelians from all over Washington, they are most abundant in the southwest regions of the state.

Keep an eye out for carnelians in Lucas Creek, Bickleton, and the Chehalis River. Mount Adams has also been known to have this mineral.

FAQ About Common Rocks & Minerals in Washington State

You’ll have the opportunity to collect all types of rare rocks and minerals in Washington State, including:

What Rare Rocks Can You Find in Washington

Washington State is not lacking in rare rocks, and in this state, you can find agates, jaspers, geodes, petrified wood, opalized wood, jade, and fossils.

Surprisingly, all these rare rocks are common throughout the state, so rockhounds of all skill levels are able to collect these with ease.

The only rock from this list that might require a bit more effort to find is jade since the high-quality pieces occur in specific areas, but as long as you visit a few of the locations listed under the jade section of this article, you’ll be able to add this rock to your collection.

The beaches and mountains of Washington hold some of the highest quality rare rocks. Check out the locations above for specific coordinates.

What Rare Minerals Can You Find in Washington

In the Evergreen State, rockhounds collect amethyst, smoky quartz, opal, carnelian, gold, garnet, and amber. While amber technically doesn’t come from the earth, it is a precious gem that you can find at Fifteen Mile Creek in Issaquah.

Of all the minerals that you can find in Washington, opals are one of the most popular stones. Fire opals, precious opals, common opals, and opalized wood all exist in this state, and they are found in many areas. 

Minerals are spread all throughout Washington State, but if you want to visit areas where you can find more than one, the beaches and rivers are your best bet.

BTW: Do you want to know more about rock and mineral identification? The books listed below are the best ones you can find on the internet (Amazon links):

What is the Most Famous Rock or Mineral Found in Washington

Washington has many gorgeous rocks and minerals, but its petrified wood is famous for its beautiful appearance and excellent condition. Even though it’s a fossil, petrified wood is the state gem of Washington, and you can collect cypress, gingko, elm, and oak pieces of petrified wood.

The Gingko Petrified State Forest is a must-see for rockhounds who are visiting this state, especially since the petrified wood located there is embedded in basalts, which is rare.


The Evergreen State is known for its surreal natural landscape, but it should also be known for its amazing collections of rocks, minerals, and gems.

The beaches, mountains, and rivers of this state hold opals, amethysts, geodes, agates, jades, and much more, all of which are praiseworthy finds for any rockhound.

Whether you find gold, amber, or one of the other treasures listed above, you’re sure to return home with some fantastic stones after you visit Washington State.

TIP: There are no places better than the Pacific Ocean beaches or the gravels of rivers and creeks when it comes to rockhounding in Washington. Find out more below:
Where to Go Rockhounding in Washington State & What to Find!