Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Definition of kidney iron ore

Posted by Jason Bennett  
Definition of kidney iron ore
May 07, 2012 07:33AM

I noticed an error on the glossary page for definition of kidney iron ore:

It says that it is a synonym of Nephrite.

I am only a young Geo, but that doesn't seem right to me, I hope I'm not wrong!


Jason Bennett
avatar Re: Definition of kidney iron ore
May 07, 2012 07:58AM

Kidney stone or kidney ore is indeed a synonym for nephrite. Derived from the ancient Greek νεφρός (nephros) which means "kidney" it has been named such because of its similarity in color and texture from some localities to raw kidney. Its Latin name was “Lapis Nephriticus”.

However the link is better placed from “Synonym” to the “See also” section, which I have now edited.

avatar Re: Definition of kidney iron ore
May 07, 2012 09:35AM
Nephrite has nothing to do with "kidney iron ore" however!

Link removed.
avatar Re: Definition of kidney iron ore
May 14, 2012 12:34AM
You weren't wrong Jason; "kidney stone" and "kidney ore" are two completely different minerals all-together.
Good catch!! thumbs up
Re: Definition of kidney iron ore
May 18, 2012 09:57AM
Thanks guys!

It is interesting to learn the etymology of nephrite! The only dealing I have had with it is the NZ nephrite jade, I have never seen 'kidney nephrite' before!

Seeming as I am working in Iron Ore at the moment, one would hope that I would know the difference between hematite and nephrite. That said, I was completely stumped when I found some small (1mm-ish) tabular orthorhombic (or tetragonal, to hard to determine from small crystals) black/brown crystals. Not magnetic, had to crush one with the sratchy magnet pen to identify, and it turned out to be goethite! That was new for me!

I will start to take photos of the nice crystalline material I found around the Pilbara and (if I'm allowed) start uploading them. There are not enough photos of Australian rust!
avatar Re: Definition of kidney iron ore
May 18, 2012 10:28AM
Our glossary did not have Kidney Ore as a term. I added the one from the old 1968 Dictionary of Mining, Mineral and Related Terms.

Kidney Ore or kidney iron ore:
A reinform, kidney-shaped structural variety of an iron ore mineral aggregate, generally hematite. The internal structure of the kidney-shaped nodules is usually concentric or radiating.

It would be very handy if we could, when we are editing the glossary/dictionary to see all the terms just above and below the one we are working on. I think it would help prevent mistakes.

Rock Currier
Crystals not pistols.

Edited 1 time(s). Last edit at 05/18/2012 10:30AM by Rock Currier.
avatar Re: Definition of kidney iron ore
May 18, 2012 10:37AM
There is a prev/next button on the glossary page.
avatar Re: Definition of kidney iron ore
May 18, 2012 10:50AM
Dave, This glossary page? I must be going blind. I can't find it.

Rock Currier
Crystals not pistols.
open | download - Kidney Ore glossary page.jpg (292 KB)
avatar Re: Definition of kidney iron ore
May 18, 2012 12:10PM
The bottom row of the lavender box
Prev: Kidney Iron Ore : Glossary Search: Edit: Add New Item: Next Kidney sulfur
avatar Re: Definition of kidney iron ore
May 18, 2012 02:53PM
Jason, we would welcome more photos and locations from the Pilbara or anywhere in W.A.

avatar Re: Definition of kidney iron ore
May 18, 2012 09:20PM
I lost my glasses and found them sitting on my nose. Thanks as usual for your patience.

Rock Currier
Crystals not pistols.

Your Email:


  • Valid attachments: jpg, jpeg, gif, png, pdf
  • No file can be larger than 1000 KB
  • 3 more file(s) can be attached to this message

Spam prevention:
Please, enter the code that you see below in the input field. This is for blocking bots that try to post this form automatically. If the code is hard to read, then just try to guess it right. If you enter the wrong code, a new image is created and you get another chance to enter it right.

Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2015, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 7, 2015 03:41:00