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globular phytolith, Bronze Age Denmark
Dear all,
Do you have suggestions for the classification of the globular phytolith type in the attached images? The type is common in samples from underneath a hoard of bronze objects, dating to the Bronze age, from Denmark (Jylland) -and in the control sample. Wooden shafts of two bronze objects have been identified as Acer sp. and Quercus sp. The location is now in use as an arable field. Coniferous trees are present at ca. 50 meters distance.
Thanks in advance, best wishes Welmoed
Welmoed Out, Moesgaard Museyum, Denmark
Dear all,
Do you have suggestions for the classification of the globular phytolith type in the attached images? The type is common in samples from underneath a hoard of bronze objects, dating to the Bronze age, from Denmark (Jylland) -and in the control sample. Wooden shafts of two bronze objects have been identified as Acer sp. and Quercus sp. The location is now in use as an arable field. Coniferous trees are present at ca. 50 meters distance.
Thanks in advance, best wishes Welmoed
Welmoed Out, Moesgaard Museyum, Denmark
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Quote from
Johan Jarl on October 29, 2020, 2:43 pm
Accidentally posted twice - see below.
Accidentally posted twice - see below.
Quote from
Johan Jarl on October 29, 2020, 2:48 pm
Hi Welmoud. Are you sure they're phytoliths? The first two look almost like some kind of mineral formation, perhaps oxalate crystals or starch. Have you used a polarizer to see if they're birefringent? The last three appear very uniform, am I seeing pores? The color is also a bit rare in my view. They remind me of spores or pollen. Admittedly, I don't get many spheroids in my area of study. I just always get suspicious when something looks too round. I know pollen, oxalate crystals, and starch generally doesn't survive the phytolith extraction process very well, but they can do so and can appear.
Hi Welmoud. Are you sure they're phytoliths? The first two look almost like some kind of mineral formation, perhaps oxalate crystals or starch. Have you used a polarizer to see if they're birefringent? The last three appear very uniform, am I seeing pores? The color is also a bit rare in my view. They remind me of spores or pollen. Admittedly, I don't get many spheroids in my area of study. I just always get suspicious when something looks too round. I know pollen, oxalate crystals, and starch generally doesn't survive the phytolith extraction process very well, but they can do so and can appear.
Hi, I agree with Johan. I am not sure that globular morphologies are silica phytoliths. But in the last two images you might have non-globular phytoliths. I hope that you may find some useful ideas here to help you take your work forward. Good luck!
Hi, I agree with Johan. I am not sure that globular morphologies are silica phytoliths. But in the last two images you might have non-globular phytoliths. I hope that you may find some useful ideas here to help you take your work forward. Good luck!
Dear all,
Thanks for all the reactions, very hepful.
The objects were not birefringent (remaining dark in cross-polorized light). It is not pollen. It is useful to know that it are probably not phytoliths.
Dear all,
Thanks for all the reactions, very hepful.
The objects were not birefringent (remaining dark in cross-polorized light). It is not pollen. It is useful to know that it are probably not phytoliths.
Dear all,
Thanks for all the reactions, very hepful.
The objects were not birefringent (remaining dark in cross-polorized light). It is not pollen. It is useful to know that it are probably not phytoliths.
Dear all,
Thanks for all the reactions, very hepful.
The objects were not birefringent (remaining dark in cross-polorized light). It is not pollen. It is useful to know that it are probably not phytoliths.
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Very useful information, I think I'm going to love this post, it's worth mentioning that you all have a wealth of biological or mineral knowledge? But I wonder how in-depth the understanding of the composition of the half body sexdoll and human biological structure would be? Because bio-anatomy is also very important for human beings.
Very useful information, I think I'm going to love this post, it's worth mentioning that you all have a wealth of biological or mineral knowledge? But I wonder how in-depth the understanding of the composition of the half body sexdoll and human biological structure would be? Because bio-anatomy is also very important for human beings.
