Naked Science Forum

Non Life Sciences => Geology, Palaeontology & Archaeology => Topic started by: Zen1 on 14/08/2016 20:11:35

Title: Is this a piece of fossilised rock?
Post by: Zen1 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.

Title: Re: Wood or Rock..?
Post by: JimBob on 15/08/2016 04:33:31

What is its weight? does it "feel" heavy? At first glance kooks like wood  ... BUT ...?

Title: Re: Wood or Rock..?
Post by: Zen1 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.

Title: Re: Wood or Rock..?
Post by: Bass 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?

Title: Re: Wood or Rock..?
Post by: JimBob on 16/08/2016 04:51:11

Say Bass, only we geologist can answer a questions with two correct answers.

Title: Re: Is this a piece of fossilised rock?
Post by: Zen1 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.