[x] Welcome at THunting.com!

A fun place to talk about Metal Detecting, Treasure Hunting & Prospecting. Here you can share finds and experience with thousands of members from all over the world

Join us and Register Now - Its FREE & EASY

THunting.com
Treasure Hunting & Metal Detecting Community
   
Advanced Search
*
Welcome, Guest! Please login or register HERE - It is FREE and easy.
Only registered users can post and view images on our message boards.

Login with email, password and session length
Or Login Using Social Network Account
News:
Pages: 1    Go Down
Print
Share this topic on FacebookShare this topic on Del.icio.usShare this topic on DiggShare this topic on RedditShare this topic on Twitter
Tags:
0 Members and 1 Guest are viewing this topic.
Offline HobbyistTopic starter
Silver Member
*

Join Date: May, 2008
Thank you0

Activity
0%

Malaysia
Posts: 1084
Referrals: 0

4220.00 Gold
View Inventory

Awards
« on: March 20, 2011, 11:35:17 pm »
Go Up Go Down

I have come across another company offering assay services. This one's a bit different than the other assayer I've been using: they offer XRF (x-ray fluorescence) quantitative and qualitative analysis of ores.

The price per sample of an XRF assay is the same as the cupellation method and so are the required sample amounts. The big differences are it only takes 20 minutes for the XRF results to be reached, as opposed to 2 days for a regular fire assay, it's non-destructive, and other types of metals found in the sample will also be part of the XRF results.

Question: which method would you as a prospector prefer to rely on?

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,22217.msg155490.html#msg155490




Logged

"Gold rides an iron horse." (Old prospector Homefire)

Offline Crown of Siam
Copper Member
*

Join Date: Aug, 2010
Thank you0

Activity
0%

Philippines
Posts: 34
Referrals: 0

95.00 Gold
View Inventory

Awards

LONG RANGE LOCATOR
« Reply #1 on: March 21, 2011, 01:20:44 am »
Go Up Go Down

 Shocked Fire Assay for gold is still the best method

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,22217.msg155501.html#msg155501




Logged
Offline HobbyistTopic starter
Silver Member
*

Join Date: May, 2008
Thank you0

Activity
0%

Malaysia
Posts: 1084
Referrals: 0

4220.00 Gold
View Inventory

Awards
« Reply #2 on: March 21, 2011, 03:13:51 am »
Go Up Go Down

Quote:Posted by Crown of Siam
Shocked Fire Assay for gold is still the best method


Thanks for yr input Crown of Siam. Could you please elaborate as to why the fire assay is preferable? Feel free to be as technical as you can...I have to learn.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,22217.msg155510.html#msg155510




Logged

"Gold rides an iron horse." (Old prospector Homefire)

Offline homefire
Mod
Platin Member
*****

Join Date: Jan, 2009
Thank you18

Activity
100%
Male
United States
Posts: 11681
Referrals: 0

34129.00 Gold
View Inventory

Awards
« Reply #3 on: March 21, 2011, 12:47:48 pm »
Go Up Go Down

I'd go with Fire Assay.    Fire assay is based on the goods PRODUCED from the sample and not what is in the sample.

Just me. 

 Grin

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,22217.msg155604.html#msg155604




Logged
Offline Crown of Siam
Copper Member
*

Join Date: Aug, 2010
Thank you0

Activity
0%

Philippines
Posts: 34
Referrals: 0

95.00 Gold
View Inventory

Awards

LONG RANGE LOCATOR
« Reply #4 on: March 21, 2011, 06:55:16 pm »
Go Up Go Down


The reason of it was aptly answered by homefire.   The NDT (non destructive testing) has many limitations especially if one is dealing with a complex ore ( a host ore with many elements present) considering that other element present may interfere with the x-ray method.  The XRF merely gives you an "apparent content" but not the actual metal that will be produced. In gold production, the efficiency factor is largely determined by the production method and presence of interfering elements. Thus using a result from the XRF as a basis for your project viability study would be quite rather risky.

For gold assays, you can either use the CIP (Carbon-in-Pulp) or CIL (Carbon-in-Leach) method for a big representative sample (say 35-50 kg) of a gold mine or you can use the Aqua Regia Procedure.  Both methods will give you an actual assay based on actual gold produced. You can also determine the silver (Ag) content as part of the assay

I am in the mining business for the past 20 years (mining manganese, copper, Iron Chromium (Chromite for the China market) and currently I owned  gold mining operation and a gold processing plant, which I acquired one year ago and am on the process of developing the operation with the prices of Gold and Silver soaring to greater heights.  Treasure Hunting is a serious hobby having the right reasons for it in our country.

I hope I have given you the  insights you need.

Thank you

Crown of Siam

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,22217.msg155704.html#msg155704




Logged
Offline HobbyistTopic starter
Silver Member
*

Join Date: May, 2008
Thank you0

Activity
0%

Malaysia
Posts: 1084
Referrals: 0

4220.00 Gold
View Inventory

Awards
« Reply #5 on: March 21, 2011, 09:09:33 pm »
Go Up Go Down

The voices of the experienced ones have spoken! My thanks to Homefire and Crown of Siam. Much insight has been gained indeed. Smiley

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,22217.msg155738.html#msg155738




Logged

"Gold rides an iron horse." (Old prospector Homefire)

Offline Crown of Siam
Copper Member
*

Join Date: Aug, 2010
Thank you0

Activity
0%

Philippines
Posts: 34
Referrals: 0

95.00 Gold
View Inventory

Awards

LONG RANGE LOCATOR
« Reply #6 on: March 21, 2011, 11:17:49 pm »
Go Up Go Down

 Shocked your most welcome

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,22217.msg155756.html#msg155756




Logged
Print
Pages: 1    Go Up
Jump to:  

Powered by SMF 1.1.19 | SMF © 2005, Simple Machines | Sitemap
Copyright THunting.com