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A black pertified wood?


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On 8/27/2021 at 6:03 PM, Nugget Shooter said:

Bob, it would be cool if you made a list of things to do before asking for further ID ON ROCKS AND MINERALS like a guide then the streak test etc would be listed with the question 

I’ll pin it here

We did that with meteorites and it did absolutely no good. Newbies don't want to do the research before posting here. 

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Sketch,

Rocks that look like mushrooms are not fossilized mushrooms. They are an assemblage of minerals that can often be identified if you offer the basic information needed to identify them.

Please rub your rocks under your toilet tank lid.

Thanks!

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27 minutes ago, Bedrock Bob said:

Sketch,

Rocks that look like mushrooms are not fossilized mushrooms. They are an assemblage of minerals that can often be identified if you offer the basic information needed to identify them.

Please rub your rocks under your toilet tank lid.

Thanks!

I streak it but it was not leaving any obvious streak that I could tell it's colour.

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A golden streak indicates a golden mushroom.

"Golden" is metallic. 

I am assuming you mean a shade of brown?

How about weight? Hardness? Some photos of the matrix? 

The photos could be about anything. Except maybe a fossil. Or golden.

It's going to be nearly impossible to tell you what it is. I can pretty much guarantee what it isn't. 

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5 hours ago, Bedrock Bob said:

A golden streak indicates a golden mushroom.

"Golden" is metallic. 

I am assuming you mean a shade of brown?

How about weight? Hardness? Some photos of the matrix? 

The photos could be about anything. Except maybe a fossil. Or golden.

It's going to be nearly impossible to tell you what it is. I can pretty much guarantee what it isn't. 

Yeh! Just like golden brown.

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Sketch,

The streak is the line it leaves on an unglazed porcelain tile. Not the spot that is left on the rock. 

I linked to a good explanation in my post above. Here it is again.

https://geology.com/minerals/streak-test.shtml

A streak on a rock like that is of very limited value. Without any other information it will be very difficult to identify it. If you honestly want to research that rock you are probably going to have to take it to a petrology lab and have an expert explain to you what it is and how it was formed.

It is just not a stone that has any features that are readily identifiable. It could be almost any type of rock. You are going to have to look a lot closer at the matrix and do some testing to have any idea what it may be. 

Im sorry but you are just not going to get any definitive answer here. 

 

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Maybe you need to rub the rock on your toilet tank lid again? Rub it really hard until you feel the heat building up. Push hard. 

Then smell it. If it gives off an odor similar to toasted onions it could be fecolite. A very valuable specimen indeed!

:inocent:

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Fecolite?... fecolite?.... Where have I heard that before?

Wow. Right here on Nuggetshooter. "The specimens are non-magnetic and leave a greenish streak when rubbed across your blue jeans. I am thinking they could be from Uranus!"

 

Edited by Dakota Slim
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1 hour ago, Bedrock Bob said:

I'm just giving you a hard time Sketch. 

:25r30wi:

I also gave you a hard time:inocent::rasberry:.

That's a joke okay pls don't take it seriously 😄.

- your beloved sketch.

Edited by Sketch
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