Solved

anyone panned for gold? weight of gold compared to grains of sand?

Posted on 2011-09-16
6
126 Views
Last Modified: 2012-05-12
My father and I used to pan for gold.
I've got the pans and someone near me, wants me to teach them how to do it.
I know we slowly shook the pans from side to side, letting the water slowly remove the sand over the edge. In the light if a spec or flake of gold (or fool's gold) showed up, you'd see it.

So, how does the weight of a grain of sand, compare to a grain of gold, the "exact" same size?
I guess the gold is heavier and that is why the sand leaves the pan and the gold does not. (?)
0
Comment
Question by:nickg5
  • 3
  • 3
6 Comments
 
LVL 83

Expert Comment

by:Dave Baldwin
ID: 36552797
0
 
LVL 25

Author Comment

by:nickg5
ID: 36552835
Does anyone know how the weight of a grain of gold, would compare to a grain of sand, the exact same size?
0
 
LVL 83

Accepted Solution

by:
Dave Baldwin earned 500 total points
ID: 36552925
About 8.4 times.  http://antoine.frostburg.edu/chem/senese/101/measurement/faq/indiana-jones.shtml

And:
"Impure gold, as it commonly occurs in deposits, has a density of 16 to 18, whereas the associated waste rock (gangue) has a density of about 2.5. The difference in density enables gold to be concentrated by gravity and permits the separation of gold from clay, silt, sand, and gravel by various agitating and collecting devices such as the gold pan, rocker, and sluicebox."

from http://pubs.usgs.gov/gip/prospect1/goldgip.html
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 25

Author Comment

by:nickg5
ID: 36554210
thanks
0
 
LVL 25

Author Closing Comment

by:nickg5
ID: 36554212
-
0
 
LVL 83

Expert Comment

by:Dave Baldwin
ID: 36554473
You're welcome.  Sometimes I read the whole question....
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Originally published Entrepreneur.com Booming numbers of freelancing professionals are changing the face of work. In the United States alone last year, the number of workers freelancing grew from 700,000 to 54 million, according to a Freelancers’…
Stuck in voice control mode on your Amazon Firestick?  Here is how to turn it off!!!
Articles on a wide range of technology and professional topics are available on Experts Exchange. These resources are written by members, for members, and can be written about any topic you feel passionate about. Learn how to best write an article t…
Where to go on the main page to find the job listings. How to apply to a job that you are interested in from the list that is featured on our Careers page.

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

25 Experts available now in Live!

Get 1:1 Help Now