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Hematite septaria locality question

Posted by Mateusz Piotrowicz  
Mateusz Piotrowicz May 16, 2019 09:08AM
Good morning,
I've bought a hematite septaria. Dealer told me it's from UK, but I'm curious to find out where it exactly came from. Do you have any ideas?

Gregg Little May 18, 2019 05:31AM
No idea of location but, unless I am mistaken, applying the term "septarian" to a botryoidal or mammillary or globular hematite habit is a bit misleading. Septarian refers to a geological process involving desiccation, often in nodules, forming the unusual cavity patterns.
Paul Brandes May 18, 2019 05:45AM
Welcome to Mindat, Mateusz!

These are not "septaria", but rather appear like iron concretions.
Have you broke one of these open to examine the interior?
Mateusz Piotrowicz May 18, 2019 09:33PM
No, I didn’t broken it, because I have only one of these.
Sorry for the mistake in translation, it should be conrection.
Łukasz Kruszewski May 18, 2019 10:31PM
Are you sure this is hematite? You might want to check the streak colour.
Mateusz Piotrowicz May 19, 2019 07:13PM
Just checked the streak, it’s red, so I assume this specimen is hematite.
Łukasz Kruszewski May 19, 2019 09:15PM
Interesting, it is quite large then. I was previously thinking about awaruite, but its concretions are more flat and rusty-dark-brown.
Krzysztof Andrzejewski May 19, 2019 09:29PM
- check kidney ore from West Cumberland Iron Field, only your specimen is not of the good quality
Colin Robinson May 19, 2019 10:14PM
NOT kidney ore from west Cumbria.
Krzysztof Andrzejewski May 19, 2019 11:17PM
Why not? If found in the river?
Colin Robinson May 20, 2019 01:07PM
I lived in west Cumbria for 12 years and have collected extensively there for about 35 years. I know kidney ore in all its many disguises and even water-worn kidney ore does not look like the specimen pictured. While it may well have hematite in it I'd be 99.9 percent certain it's not from west Cumbria. I will also suggest that if it is so heavily worn as to be no longer botryoidal/mammillary you can't really call it kidney ore.
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