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RoYan
15842860522175447302526087784819.jpgi found these in a field in Wiltshire, both are flint, they have been washed. 1 is of a plant and the other is an unusual shape in a dark blue piece of flint
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prep01
Hello and welcome to the forum. I don't think the top one is a plant - these are extremely rare and found in the Rhynie Chert of Scotland. I would think it's more likely to be traces of worm burrows in section. The other one I think is a sponge, but one unclear photo isn't much help I'm afraid.
Colin Huller
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Weald on Bed
The top one is a classic example of manganese dendrites - a common type of 'pseudo-fossil' (i.e. not actually a fossil but a natural mineral/geological feature that often fools people into thinking it's a fossil).
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prep01
Hi Stuart, that was my first thought, but it doesn't look 'right ' to me I'm afraid. Firstly,  the colour is wromg from this photo, Manganese denddrites are almost always black in the chalk and look crystaline. Secondly the dendrotes look far too wide  not 'fern like'
Colin Huller
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andrasz
First one is a dendrite for sure, they can display a great variety depending on the composition of the mineral solution and the host rock.
As for the second, perhaps a belemnite in cross section...? Does it show on the other side?
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Anonymous
 Hi , thanks for everyone's input. for the second one , no it doesn't show on the other side but it is a bit raised and very smooth.
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