Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat Articles
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Hematite septaria locality question

Posted by Mateusz Piotrowicz  
avatar
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?


avatar
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.
avatar
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?
avatar
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.
avatar
Łukasz Kruszewski May 18, 2019 10:31PM
Are you sure this is hematite? You might want to check the streak colour.
avatar
Mateusz Piotrowicz May 19, 2019 07:13PM
Just checked the streak, it’s red, so I assume this specimen is hematite.
avatar
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.
avatar
Krzysztof Andrzejewski May 19, 2019 09:29PM
- check kidney ore from West Cumberland Iron Field, only your specimen is not of the good quality
avatar
Colin Robinson May 19, 2019 10:14PM
NOT kidney ore from west Cumbria.
avatar
Krzysztof Andrzejewski May 19, 2019 11:17PM
Why not? If found in the river?
avatar
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.
Sorry, only registered users may post in this forum.

Click here to login



bannerbannerbannerbannerbannerbanner
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: May 21, 2019 04:15:57
Go to top of page