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Rock from Australia


ThePrehistoricMaster

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Looks more like geologic or mineral features, to me. :unsure:  :headscratch:

@ynot

 

Cropped, enlarged and brightened. 

 

15222578795492040555483.thumb.jpg.77a5fb702dd98070887d905b0a5fb8a5.jpg

 

 

Can we see it from some other angles?

What size is this?

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5 minutes ago, Fossildude19 said:

Looks more like geologic or mineral features, to me. :unsure:  :headscratch:

@ynot

Yeah, that's what i thought too. Or cold it be marks from small animals. 

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18 minutes ago, Fossildude19 said:

Can we see it from some other angles?

What size is this?

It is about 5 cm in diameter

1522259467378-1154097291.jpg

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Any information of where in Australia it was found (it is a pretty big country!)?

...How to Philosophize with a Hammer

 

 

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3 minutes ago, Kane said:

Any information of where in Australia it was found (it is a pretty big country!)?

Close to Melbourne

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I think it is diabase (dolerite, microgabbro), or a similar igneous rock, with the plagioclase crystals heavily eroded.

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I agree with ynot and Auspex

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I'm leaning toward polychaete worm borings on pebble surface.

 

1522259467378-1154097291.jpg.d91c3bb5a2c43a400d4eacfc1df8484b.thumb.jpg.1186c812ed196e16506ac71fa57389ae.jpgP1080456.thumb.JPG.b2ad376e6d943818ceee4aea56ae0464.JPG

comparative image from here

 

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21 hours ago, caldigger said:

20180328_123955.png

 

Mmmmm...Brains!

20180328_123833.png

I prefer mine a little more tender and rare than the one pictured. :D

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