Mindat Logo
bannerbannerbannerbanner
Welcome!

Native silver in quartz ?

Posted by Heath Barnes  
avatar Re: Native silver in quartz ?
May 14, 2012 06:31PM
    
Is it graphite? If you can dent it with your finger nail it could be? I had some emerald with very soft silvery grey graphite, it could easily be dented with a finger nail.

Amanda
Re: Native silver in quartz ?
May 14, 2012 07:50PM
No it can't be scratched with a finger nail Amanda, it leaves a grey- silver streak on the back of a tile but makes quite a noise doing it.
Re: Native silver in quartz ?
May 14, 2012 08:30PM
    
Did you already check whether it could be Molybdänite? Molybdänite occurs often together with quartz opposed to native silver. I add a picture for comparison.

Uwe Ludwig
Attachments:
open | download - Molybdänit-Schlema.JPG (194.7 KB)
Re: Native silver in quartz ?
May 14, 2012 08:45PM
Uwe no and if ime honest as i write this ime still in the dark as to what the mineral you have shown me actually is but yes i agree it looks very similer ime going to google it now but any more images or imformation would be most welcome.
Re: Native silver in quartz ?
May 14, 2012 09:00PM
    
Think Uwe is referring to this mineral " molybdenite " at this location :- [www.mindat.org]

Also tend to agree with this suggestion

Regards

Edit,,,, went through all 500+ but could not find the variety/type Uwe alluded too



Edited 1 time(s). Last edit at 05/15/2012 06:45AM by George Creighton.
Re: Native silver in quartz ?
May 14, 2012 09:09PM
Thanks George
Re: Native silver in quartz ?
May 14, 2012 09:57PM
Any more info on this mineral please as usual ive been totaly confused by the google button !
Re: Native silver in quartz ?
May 15, 2012 11:05AM
    
Hello Heath,

google is not the best solution to check minerals. Go to the link: [www.handbookofmineralogy.org].

There you find a complete description of Molybdenite (and of all other minerals).

At the beginning of this thread you wrote about a black soft tarnish. That may be Jordesite which is also a molybdene sulfide.

@George: I found the molybdenite which I showed on the dump of the mine 371. You find the mineral list of this location at Niederschlema, shaft 371. However, this was a relatively rare mineral there.

rgds.
Uwe Ludwig
Re: Native silver in quartz ?
May 15, 2012 02:44PM
    
Thanks Uwe found it now thumbs up

Regards george
Re: Native silver in quartz ?
May 15, 2012 08:14PM
Heath Barnes Wrote:
-------------------------------------------------------
> No it can't be scratched with a finger nail
> Amanda, it leaves a grey- silver streak on the
> back of a tile but makes quite a noise doing it.


Appolagies to all it can be scratched with a finger nail i did not look close enough!!!
Re: Native silver in quartz ?
May 15, 2012 08:32PM
Uwe Ludwig Wrote:
-------------------------------------------------------
> Did you already check whether it could be
> Molybdänite? Molybdänite occurs often together
> with quartz opposed to native silver. I add a
> picture for comparison.
>
> Uwe Ludwig


Uwe thanks for the help one thing that ive not managed to find is anything simmiler to the way my example apears to be flowing through the quartz?
Re: Native silver in quartz ?
June 08, 2012 11:11PM
I have had this piece looked at by Roger and he tells me it is not native Silver in Quartz Sorry we had to much to think about today i think its a form of mica with unexplained black easily polished tarnish ?
Re: Native silver in quartz ?
June 15, 2012 10:03PM
I have now looked some of this stuff up and i think it could be black biotite mica, in quartze?
Author:

Your Email:


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:
Mineral and/or Locality  
Search Google  
Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: September 21, 2014 02:06:33
Mineral and Locality Search
Mineral:
and/or Locality:
Options
Fade toolbar when not in focusFix toolbar to bottom of page
Hide Social Media Links
Slideshow frame delay seconds