Help mindat.org|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:
Keyword(s):
 
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
bannerbannerbannerbannerbannerbanner

whats this ... black color cubic shape..?

Posted by Sajjad Shakir  
whats this ... black color cubic shape..?
March 21, 2012 08:49PM
Attachments:
open | download - DSCN5809.JPG (65.9 KB)
open | download - DSCN5807.JPG (193.9 KB)
avatar Re: whats this ... black color cubic shape..?
March 21, 2012 08:53PM
    
Test with a magnet - pretty sure it's magnetite.

Peter
avatar Re: whats this ... black color cubic shape..?
March 21, 2012 09:43PM
    
To me it looks translucent, and red. Possibly spinal? is the matrix schist?

-Rowan Lytle

Necessities:
Food, Water, Shelter, Fire, Minerals.
avatar Re: whats this ... black color cubic shape..?
March 21, 2012 09:58PM
    
Hi Minerals Miner,

I agree with Peter, looks like Magnetite in a chloritic schist. Check with a magnet as Peter suggested. It could occur like this in a few places but it looks very much like Chester, Vermont material. Compare to this image below.

Ron

Attachments:
open | download - 100_4044a.jpg (938.6 KB)
avatar Re: whats this ... black color cubic shape..?
March 22, 2012 01:36AM
Ronald is so dead on with this that he's been mummified for 5000 years.
Re: whats this ... black color cubic shape..?
March 22, 2012 09:54AM
Thanks All
avatar Re: whats this ... black color cubic shape..?
March 22, 2012 11:39AM
Hmm
What's with the pseudonym ?

Didn't think they were allowed !!

Cheers
Re: whats this ... black color cubic shape..?
March 22, 2012 12:36PM
Keith, you give me an opportunity to reiterate Mindat's policy on this issue, which is to encourage people to use their real names, and thankfully the majority of participants here do. (It should be obvious to anyone cruising around the internet that the level of politeness and quality of discourse is far higher on sites where most people are using real names, and that verbal abuse and general trash proliferate on sites that encourage anonymity.) On the Message Board we do not absolutely insist on real names although we do warn users that their questions and comments are likely to be treated less seriously when posted anonymously, and anonymous posts are more likely to be deleted by site administrators if they infringe on grey areas.

But that only applies to the Message Board. Outside the Message Board, those who wish to upload photos or locality information to the database are obligated to provide real names, and they will be blocked from uploading when we find out they are using a false name. The "Minerals Miner" whose post you refer to above is blocked from uploading pix to the database.

Cheers,
Alfredo
avatar Re: whats this ... black color cubic shape..?
March 22, 2012 02:04PM
    
There is spinel which looks like that, and is not magnetite, here in Colorado http://www.mindat.org/photo-312469.html
avatar Re: whats this ... black color cubic shape..?
March 22, 2012 02:08PM
It's the greenish shade of the matrix that (in my mind) confirms magnetite over spinel.
avatar Re: whats this ... black color cubic shape..?
March 22, 2012 03:16PM
    
Hi Steve,

> "...he's been mummified for 5000 years."

I'm pretty old Steve but not quite that old, only eighteenth dynasty. smiling smiley

Amenrontep IV
avatar Re: whats this ... black color cubic shape..?
March 22, 2012 05:17PM
"Minerals Miner" offers no data, despite he knows the rules of the forum. Even don't answer simple questions like if it is magnetic or not.
Maybe he use the forum just to play a guessing game ...

Josele
Re: whats this ... black color cubic shape..?
March 22, 2012 06:31PM
    
Alfredo Petrov Wrote:
-------------------------------------------------------
> The "Minerals
> Miner" whose post you refer to above is blocked
> from uploading pix to the database.
>
> Cheers,
> Alfredo


Have I missed something here or did not fully understand that reply???????????

http://www.mindat.org/photo-410310.html
http://www.mindat.org/photo-448391.html

If I misunderstood then please disregard this post!

Regards george
avatar Re: whats this ... black color cubic shape..?
March 22, 2012 10:11PM
    
Magnetite octahedron in Chloritic schist come from too many localities, most with no distinction worthy to hazard a guess. More common worldwide sources are actually the brazilian locales, that is unless the collector you got it from or said dealers are near one of many more local sources. i.e., who knows?

MRH
Author:

Subject:


Attachments:
  • Valid attachments: jpg, 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.
CAPTCHA
Message:


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.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2015, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: August 1, 2015 12:51:26