<p>Looks like slate to me. 
<a href="https://ngmdb.usgs.gov/Prodesc/proddesc_9346.htm" rel="nofollow noreferrer">The geological map of Trinidad suggests that the local rocks are shale, which is similar to slate but less compact.</a> </p>

CC BY-SA 4.0
2018-06-16T06:45:38.963Z
2018-06-16T06:45:38.963Z
Geochron
<p>My co-worker had this rock and told me found just behind the store, Big R, and put on the table in the office.</p>

<p>Location is Trindad, Colorado.</p>

<p><a href="https://i.sstatic.net/4sPM8.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/4sPM8.jpg" alt="enter image description here"></a></p>

<p><a href="https://i.sstatic.net/InZkN.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/InZkN.jpg" alt="enter image description here"></a></p>

<p><a href="https://i.sstatic.net/6q2hn.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/6q2hn.jpg" alt="enter image description here"></a></p>

CC BY-SA 4.0
2018-06-15T19:39:32.873Z
Is there anything more you can add after reading [this guide](http://meta.earthscience.stackexchange.com/questions/124/a-guide-for-asking-identify-this-rock-questions)?
Jan Doggen
<rocks>
Rock identification ? What kind of it is?
PROBERT
# Rock identification ? What kind of it is?

(Asked by: username_0 on 2018-06-15)

My co-worker had this rock and told me found just behind the store, Big R, and put on the table in the office.

Location is Trindad, Colorado.

[![enter image description here](https://i.sstatic.net/4sPM8.jpg)](https://i.sstatic.net/4sPM8.jpg)

[![enter image description here](https://i.sstatic.net/InZkN.jpg)](https://i.sstatic.net/InZkN.jpg)

[![enter image description here](https://i.sstatic.net/6q2hn.jpg)](https://i.sstatic.net/6q2hn.jpg)

**Tags:** rocks

> **Comments:**
> **username_1**: Is there anything more you can add after reading [this guide](http://meta.earthscience.stackexchange.com/questions/124/a-guide-for-asking-identify-this-rock-questions)?  

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## 1 answers

### Answer by username_2 on 2018-06-16. Score: 2

Looks like slate to me.
[The geological map of Trinidad suggests that the local rocks are shale, which is similar to slate but less compact.](https://ngmdb.usgs.gov/Prodesc/proddesc_9346.htm)


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