Is this a piece of fossilised rock?

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Offline Zen1

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Is this a piece of fossilised rock?
« on: 14/08/2016 20:11:35 »
Can anyone throw some light on whether this might be a piece of fossilised wood please or if it's not be able to tell me what type of rock it is...?.
Thank you.
« Last Edit: 16/08/2016 09:06:52 by chris »

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Offline JimBob

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Re: Wood or Rock..?
« Reply #1 on: 15/08/2016 04:33:31 »
What is its weight? does it "feel" heavy? At first glance kooks like wood  ... BUT ...?
« Last Edit: 15/08/2016 04:41:44 by JimBob »
The mind is like a parachute. It works best when open.  -- A. Einstein

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Offline Zen1

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Re: Wood or Rock..?
« Reply #2 on: 15/08/2016 10:30:10 »
Well it does feel quite heavy....the weight is just over 3 kilos and the measurements are 20cm x 12cm.
Is all fossilised wood quite light in weight..?.
It looks like wood especially on the top ....I've posted another photo.

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Offline Bass

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Re: Wood or Rock..?
« Reply #3 on: 16/08/2016 01:20:19 »
What is the rock made of? can you scratch it with a knife? (most petrified wood is silica, though I've also seen carbonate)
Will it fizz if you drop dilute (10%) hydrochloric on it?
Also, there is a curious looking opening? at the end of the specimen, could you post a picture end-on?
Old enough to have a grandson
Slow enough to study rocks
Thirsty enough to find a pub

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Offline JimBob

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Re: Wood or Rock..?
« Reply #4 on: 16/08/2016 04:51:11 »
Say Bass, only we geologist can answer a questions with two correct answers.
The mind is like a parachute. It works best when open.  -- A. Einstein

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Offline Zen1

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Re: Is this a piece of fossilised rock?
« Reply #5 on: 16/08/2016 09:34:37 »
It does seem to scratch easily....not much pressure needs to be used.
Haven't been able to do the acid test yet I'm afraid.
Two more photos added.