Last Shout - Posted by: mcbain - Saturday, 05 September 2015 03:54
Check the area for registerd claims might not be any interest there.Gowork the area between claims or get a hold of a claim owner and ask permission Luck Mcbain.
Welcome To The Canadian Gold Prospecting Forum.
Please consider registering to gain full access! - Its free and only takes a few seconds to complete - Click Here.

Gold Prospecting Forums, Gold Prospecting Forum

September 04, 2015, 10:40:59 PM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
Mining Equipment
News: ★★ Join now to access the new downloads section comprising of 52
(and growing) diy prospecting equipment plans, and educational materials. Just click register, make two posts and enjoy. It's that simple!!★★

   Home   Blog Search Register  


Gold Prospecting Forum.

Gold prospectors forum

DIY mining equipment homemade prospecting tools.

Gold Prospecting Forums

GOLD PROSPECTING FORUM mining forum, canadian prospecting forum, american gold prospecting forum. GOLD PROSPECTING EQUIPMENT


Pages: [1]   Go Down
  Add bookmark  |  Print  
Author Topic: looking for a good method to seperate gold from black sand  (Read 5863 times)
0 Members and 1 Guest are viewing this topic.
little clinkers
Trade Count: (0)

Offline Offline

Canada Canada

Province/ State: british columbia

Posts: 2

0.00 Nuggets

Kudos: 0

My 30 day Activity

« on: September 19, 2009, 09:37:51 PM »

  found a nice place where there is an ample supply of  gold in black sand, but how does one sperate the two.

  panning hasn't been  that sucessful ,as I am sure we lose as much as we get out.

Trade Count: (0)

Offline Offline

Canada Canada

Province/ State: British Columbia

Posts: 1555

0.00 Nuggets

Kudos: 20

Awards Awarded to members who have more than 1000 posts Awarded to members who have more than 500 posts

My 30 day Activity

WWW Awards
« Reply #1 on: September 24, 2009, 10:26:55 AM »

Welcome to the forum Little Clinkers!!  Cool Sign

Try a forum search in the upper right of the page... I know there has been a few discussions regarding separating black sand. Hopefully you'll find one that suits your needs.

 Cool Sign
Trade Count: (0)
Sr. Member

Offline Offline

Canada Canada

Province/ State: bc

Posts: 455

0.00 Nuggets

Kudos: 10

My 30 day Activity

« Reply #2 on: March 15, 2010, 10:32:45 AM »

hi try using a magnet under your pan as you swearl it  then suck up the blacks,next dry your blacks outside on fire or stove stay down wind mercury is poison,when dry add some salt then reheat,when good and hot submerge in water and walla the gold breaks from the blacks,better still find some klinkers a the heck with the blacks haha. mygrains

Trade Count: (0)
Full Member

Offline Offline

Mongolia Mongolia

Posts: 74

0.00 Nuggets

Kudos: 5

My 30 day Activity

« Reply #3 on: March 09, 2011, 01:01:32 AM »

If you have a natural deposit of essentially black sand, then you might consider using The Gold Cube. According to what I have read, it is capable of getting rid of a lot of black sand in a very short time to produce a decent gold concentrate. It will still need more cleaning though.

Before that, try the Coca-Cola bottle test!
1 - Three-quarters fill the bottle with water.
2 - Top it up with a mix of your black sand and tiny white quartz pebbles.
3 - The pebbles will zoom to the bottom first, the black sand will follow and bury the quartz pebbles.
4 - Put the top on the bottle.
5 - Hold the bottle and b-o-i-n-g it against a wall.
6 - The quartz pebbles will suddenly wiggle and rise to the top of the black sand, together with other lights that are less easy to see.
7 - Gently tilt the bottle horizontal.
8 - Hold the bottle up above your head, and shine a light on the bottom of the bottle.
9 - If you are lucky, then gold will be visible hiding beneath the black sand.

A curious point to remember is that, often but not always, the gold in black sand is much smaller than the particles of black sand (magnetite etc). The reason for this is due to 'hydraulic equivalence', a strange concept but seemingly true.
Therefore when looking at dry black sand with a good lens (x20) or better a zoom x40-x100 binocular microscope, most of the gold is likely to be missed by eye at first glance. That's because the gold is so tiny and heavy it burrows under the black sand in a fraction of a second. To reveal the gold particles, I find the simplest way is to bend a paperclip (plastic coated is best) into an L-shape and then use the bottom of the L to stroke the black sand into a smear. With luck you'll see fine gold.

Another method, used by artisanal miners in some countries, is to spread dry black sand out on a smooth flat metal sheet. Then to hammer the black sand to crush it. The gold is not in the black sand but the black sand being brittle shatters and can be gently blown away, whereas the gold being malleable just spreads into a thin sticky malleable sheet.

Hope these suggestions help somehow.


PPT Invited
Trade Count: (0)

Offline Offline

Canada Canada

Province/ State: Alberta

Posts: 2842

0.00 Nuggets

Kudos: 130

Awards Awarded to members who have more than 100 reputation points on the forum Awarded to members who have more than 2000 posts Awarded to members who go above and beyond Awarded to members who have more than 50 reputation points on the forum Awarded to members who have more than 1000 posts Awarded to members who won a competition on the forum Awarded to members who have more than 500 posts

My 30 day Activity

« Reply #4 on: March 09, 2011, 08:54:47 AM »

Are you looking at cons from a gravity seperation system or is this some form of heavy mineral sand that you need to process?
An important thing to sort out is how much of the gold is IN the black sand versus WITH the black sand.
If running assays of heavy cons you have to be careful to determine how much of the gold is actually free grains in the con versus trapped in heavy mineral grains.
If doing a simple gravity seperation test for free gold then you have a pretty straightforward process. Keep in mind that many heavy cons are only a percentage magnetic black sand and you will still be faced dealing with other heavies even if you were to remove the black sand magnetically.
Steppegolds description of the artisanal miners breaking the brittle mineral grains is a technique I have used successfully with a roller mill. The cons are run through a roler mill with the rollers against each other and the brittle mineral grains shatter while the malleable gold stays more or less together though it can be ironed thinner. With a lab scale roller I have been able to finely adjust the rollers and take the cons to narrow classifications and thereby effect a preferential grind that allowed me to take a large portion of the gold out of various splits. Taking the cons to a minus 30 plus 40 mesh split for instance and then setting the rollers to 50 mesh. The mineral grains shatter to 50 mesh and finer while the gold zips through and stays larger than the mineral grain powder.
A simple screen on the fifty mesh and I have a large portion of the gold from that split.
One thing to keep in mind though is back to the gold IN the black sands. When you crush the sand you will liberate even more fine gold not neccessaruly from the magnetic black sands but also from other heavy minerals like sulphides and that gold can get down to some very tiny sizes.
So many of the processes that can be suggested are dependent on how much heavy mineral are you dealing with, the size of the gold expected, and the budget you have to work with.
For many people dealing with a five gallon bucket of sluice cons heading for a miller type table makes sense. If they are dealing with a ton of jig cons each day then everything changes. If their intention is to recover gold caught in a sluice then they know that the majority of the their gold should be of a certain size and larger as the sluice recovery curve drops off after a certain size range is reached. Working with a gravity concentrator that can recover finer gold than the sluice then means the entire seperation approach must be evaluated to establish the appropriate recovery method. If assay shows that there is a whole lot of gold tied into the heavy con then you may see the whole processing approach change as you might switch from a gold recovery plant to a heavy mineral recovery plant. Then the gold recovery goes from  simple to ......well......less simple.  Laugh


What the heck - lets just keep mixin' stuff together till it blows up or smells REALLY bad!
PPT Invited
Trade Count: (0)

Offline Offline

Canada Canada

Province/ State: British Columbia

Posts: 246

0.00 Nuggets

Kudos: 2

My 30 day Activity

« Reply #5 on: May 08, 2011, 07:50:53 PM »

Hey Little Clinkers
Your profile says you are in British Columbia. You wouldn't happen to be on a group of islands off the north coast and this wouldn't just happen to be beach gold, would it? If so, PM me.

"He was always cold, but the land of gold seemed to hold him like a spell.......Though he'd often say, in his homely way, that he'd "sooner live in Hell"......"
~~Robert W. Service~~

"When you live next to the graveyard, you can't cry for every funeral."   -  Russian Proverb

Pages: [1]   Go Up
  Add bookmark  |  Print  
Jump to:  

Related Topics
Subject Started by Replies Views Last post
General Gold Prospecting Forum
Seeker 2 12075 Last post November 11, 2006, 09:46:53 PM
by Seeker
anyone done studies on vibration to help seperate gold from the junk?
General Gold Prospecting Forum
wi george 3 2038 Last post September 30, 2008, 06:24:43 AM
by wi george
Black sand and ribbons of gold. Revised.
Geology and Earth Science
Chuxgold 0 2600 Last post January 11, 2009, 05:00:37 PM
by Chuxgold
can a rocker box seperate black sand from au black sand.
General Gold Prospecting Forum
Chuxgold 3 3949 Last post October 17, 2010, 08:06:52 PM
by juu907
Black sand gold recovery plant « 1 2 3 »
Machine Assisted Placer Operations
cameranz 26 18541 Last post April 14, 2010, 08:57:32 PM
by rhodiumfever
MOVED: Black sand gold recovery plant
Do It Yourself Projects
shiver 0 3053 Last post March 31, 2009, 12:07:56 PM
by shiver
Roasting black sand to extract fine gold?
Tech Talk
sluicemonkey 4 25229 Last post May 27, 2009, 12:37:02 PM
by Chuxgold
Frenchy's Secret Gold Panning Method « 1 2 ... 5 6 »
General Gold Prospecting Forum
PlacerPal 57 17048 Last post December 27, 2012, 07:25:22 AM
by ebuyc
new idea for gold and black sand concertrator
General Gold Prospecting Forum
eureka4gold 0 4331 Last post October 15, 2009, 06:06:14 PM
by eureka4gold
Ratio between Black Sand and Gold?? Such a thing??
General Gold Prospecting Forum
pjstarchild 7 4100 Last post June 19, 2010, 06:09:53 PM
by pjstarchild
fine black sand and gold, best suggested method? « 1 2 »
General Gold Prospecting Forum
lucky-tucker 11 4552 Last post February 24, 2011, 02:33:57 PM
by lucky-tucker
Whats a good/cheap metal detector that will pick up black sand?
General Gold Prospecting Forum
goldballah 2 2624 Last post April 09, 2011, 04:32:41 PM
by goldhound
Has anyone seen a good method of leaching gold with chemicals from safeway? « 1 2 »
General Gold Prospecting Forum
pandemonium 13 7984 Last post October 31, 2013, 11:47:13 PM
by Traveller
Whats the best way to seperate gold from concentrates??? « 1 2 3 »
General Gold Prospecting Forum
lippsy 26 4763 Last post September 24, 2012, 12:41:34 AM
by GollyMrScience
Method to aid in fine gold processing/recovery from black sands.
General Gold Prospecting Forum
azau 1 1088 Last post April 18, 2013, 06:27:32 PM
by wolfedog

Mining Advertising


Unique Hits: 43063289 Total Page Views: 61091344
Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2013, Simple Machines | Sitemap Valid XHTML 1.0! Valid CSS!
Page created in 0.357 seconds with 45 queries.

Translate This Page:

| Advertise with us | Gold Prospecting Forum | Gold Info | Gold Prospecting Tutorials | Homemade Tools | Prospecting Glossary | GOLD PROSPECTING LINKS | CONTACT FORUM SUPPORT

Photos, Resources, Downloads and all other media on this site are the sole property of their owners. Reproduction in part or in whole without permission is prohibited

Website design by Shiver Design

Gold Prospecting Forums site map