<p>This is a sandspike concretion</p>

<p><a href="http://tywkiwdbi.blogspot.com/2013/01/unexplained-sand-spike-concretions.html" rel="nofollow noreferrer">Pictures can be seen here</a></p>

<p>Sometimes, only a spike is found and sometimes the spike has some 'balls' or round concretions attached to it. </p>

CC BY-SA 4.0
2018-10-11T21:12:10.170Z
2018-10-11T21:12:10.170Z
JulPal
<p>I found this odd shaped rock along a rocky river bed (dry) near the Illinois river in Cave Junction,  Oregon.  It is shaped like a Club and is super heavy.  It has a distinguishable ring around the base uniform in size,  and makes a dense ringing sound when rubbed?  I see some reflective flakes when turned and grainy but solid material on surface, 18 inches length. any ideas? <a href="https://i.sstatic.net/Yfqyp.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/Yfqyp.jpg" alt="rock image"></a><a href="https://i.sstatic.net/dfak4.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/dfak4.jpg" alt="rock length reference 5 in ruler"></a><a href="https://i.sstatic.net/ynJxh.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/ynJxh.jpg" alt="close up of ring on base"></a></p>

<geology>
What is this rock found in the Illinois Valley of Southern Oregon?
Monique Sparks
# What is this rock found in the Illinois Valley of Southern Oregon?

(Asked by: username_0 on 2018-10-11)

I found this odd shaped rock along a rocky river bed (dry) near the Illinois river in Cave Junction, Oregon. It is shaped like a Club and is super heavy. It has a distinguishable ring around the base uniform in size, and makes a dense ringing sound when rubbed? I see some reflective flakes when turned and grainy but solid material on surface, 18 inches length. any ideas? [![rock image](https://i.sstatic.net/Yfqyp.jpg)](https://i.sstatic.net/Yfqyp.jpg)[![rock length reference 5 in ruler](https://i.sstatic.net/dfak4.jpg)](https://i.sstatic.net/dfak4.jpg)[![close up of ring on base](https://i.sstatic.net/ynJxh.jpg)](https://i.sstatic.net/ynJxh.jpg)

**Tags:** geology


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## 1 answers

### Answer by username_1 on 2018-10-11. Score: 1

This is a sandspike concretion

[Pictures can be seen here](http://tywkiwdbi.blogspot.com/2013/01/unexplained-sand-spike-concretions.html)

Sometimes, only a spike is found and sometimes the spike has some 'balls' or round concretions attached to it.


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