Mindat Logo
bannerbannerbannerbanner
Welcome!

black rock with gold fleck rings...

Posted by minnie  
minnie
black rock with gold fleck rings...
March 04, 2011 10:19PM
found this rock on the shore of lake superior....it is blackish with greyish nubs encircled by a ring of gold flecks....can anyone tell me what this is?
Attachments:
open | download - Photo 117.jpg (26.8 KB)
avatar Re: black rock with gold fleck rings...
March 05, 2011 02:21AM
    
Hi Minnie,

The image is very poor. You should post an image that is well focused, with a better image an ID for this may be possible.

Ron
avatar Re: black rock with gold fleck rings...
March 05, 2011 02:39AM
    
one tip is to set the piece down on a table or something. in general holding the specimen in hand is a poor way to take a photo and almost always will not be in focus.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A buena hambre no hay pan duro
avatar Re: black rock with gold fleck rings...
March 05, 2011 04:59AM
I agree Minnie; you will need a better photo that is more in focus and larger to see more details.
With that said, being that your specimen is from Lake Superior almost leads me to believe your "gold flecks" are one of the micas, more than likely phlogopite. As far as what rock it is in, we'll need a better photo for that....
minnie
Re: black rock with gold fleck rings...
March 05, 2011 04:32PM
well, thank you all for your input....i will make another attempt at photographing this rock i found.... hopefully a better picture will help someone identify this for me.....
anthony weatherbee
Re: black rock with gold fleck rings...
June 26, 2012 05:04PM
where there is black sand there is gold ! the black sand is oreite ! The gold settles in the oreite and when pressed the oreite becomes a rock . The oreite is not hard and will crack apart with a pair of pliers so you can get the gold out ! I gold pan in Oregon and find it all the time .
Re: black rock with gold fleck rings...
June 26, 2012 05:50PM
    
Hello Anthony,

I am an assayer and I see plenty of black sand come into my lab....Some will have values but most does not. The ONLY reason black sand is ever associated wiith gold is that the darker minerals in any deposit are usually the denser minerals - much closer in density to gold than the lighter colored minerals (although there are exceptions). SO, IF there is any gold upstream then it MIGHT accumulate in the same conditions as the darker minerals and the black sand MIGHT be an indicator of gold BUT it CANNOT be said that where there is black sand there is gold!!

Also, "oreite" is neither a mineral nor rock - I've never heard the term before - anyone else? "Ore" is the term used to describe a substance which can be extracted, AT A PROFIT, from a mine - be it placer, quarry or underground operation. What you described as "oreite" sounds like a poorly consolidated conglomerate of darker mineral grains. If you're making a living from your placer claims then you must consider yourself a very lucky person!!!

Don S.
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: November 28, 2014 04:20:26
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