Heating magnetic black sand/magnetite

[Dieseltechjon]

I have couple pounds of black sand that I pulled from old cons. Is it worth heating them up and shocking them to release more gold? If so would using an industrial kiln at 1300deg work ok? I know they just need to be heated, then cooled quickly? Is there anything I should be aware of before? Thanks for any help.

 

[arizau]

I have couple pounds of black sand that I pulled from old cons. Is it worth heating them up and shocking them to release more gold? If so would using an industrial kiln at 1300deg work ok? I know they just need to be heated, then cooled quickly? Is there anything I should be aware of before? Thanks for any help.

Be safe! Sudden introduction of the hot sand into water could cause a steam explosion.

 

[Mine Shaft]

I have couple pounds of black sand that I pulled from old cons. Is it worth heating them up and shocking them to release more gold? If so would using an industrial kiln at 1300deg work ok? I know they just need to be heated, then cooled quickly? Is there anything I should be aware of before? Thanks for any help.

When I'm done with Sluicing I end up with a cup and a 1/2 of black sand I just pan it like I always do even the smallest specks .000.5 to .001 don't get away lol Good luck.

 

[Mine Shaft]

? How much Gold would be released in black sand I wonder ?

 

[Dieseltechjon]

? How much Gold would be released in black sand I wonder ?

I watched a few videos of people roasting black sand in a cast iron skillet over a propane stove and quickly throwing them in to cold water. apparently after that you may get some gold that may have been hanging on to the black sand. This is where I get confused. Magnetite is an oxide? which was a sulfide until it reached the surface? roasting sulfides is where you release gold from....i also read that it can release some nasty gas if done improperly. Some people made it look as easy as heating up on a propane stove, then throwing it in to some cold water, pan it out and collect the gold. not sure what to make of it.

 

[Mine Shaft]

There have been times i have seen what looks like Gold attached to the black sand and thought to myself I don't think so lol so I just let it go so maybe I should put those bigger pieces of iron ore in a hot pan the little chunks I have seen are about a 1/16th diameter and bigger I will try it.

 

[Dieseltechjon]

There have been times i have seen what looks like Gold attached to the black sand and thought to myself I don't think so lol so I just let it go so maybe I should put those bigger pieces of iron ore in a hot pan the little chunks I have seen are about a 1/16th diameter and bigger I will try it.

I know what you are saying. One time I had about a one-gram nugget of rusty magnetite that was sitting on the top mat of my gold cube. It looked like gold but when I put it under a magnifying glass you could tell it wasn't. Sure got my motor revving at first sight. I never cracked that thing open which still kinda bothers me

 

[Assembler]

I know what you are saying. One time I had about a one-gram nugget of rusty magnetite that was sitting on the top mat of my gold cube. It looked like gold but when I put it under a magnifying glass you could tell it wasn't. Sure got my motor revving at first sight. I never cracked that thing open which still kinda bothers me

Most here on this forum will likely not want to know about the physics and chemistry process of how there can be gold in, on, or next to iron as this can be on the boring dry side of things.

If there where phase changes in the iron formation as the iron moved towards the surface of the earth crust the following likely will have happened within the phase change process or changes.

Whether or not a substance has a net electric charge is determined by the balance between the number of electrons and the positive charge of atomic nuclei. If there are more electrons than positive charges, a material is said to be negatively charged. If there is an excess of protons, the object is considered to be positively charged. If the number of electrons and protons is balanced, a material is said to be electrically neutral.

In chemistry and physics, to be diamagnetic indicates that a substance contains no unpaired electrons and is not attracted to a magnetic field. Diamagnetism is a quantum mechanical effect that is found in all materials, but for a substance to be termed "diamagnetic" it must be the only contribution to the matter's magnetic effect.

 

[Assembler]

? How much Gold would be released in black sand I wonder ?

Depending on the events that nature made on that particular iron rock formation will answer how much gold is present.
Sometimes one can see evidence with the aid of magnification of what nature events has made on a given iron sample.

 

[ConceptualizedNetherlandr]

I have couple pounds of black sand that I pulled from old cons. Is it worth heating them up and shocking them to release more gold? If so would using an industrial kiln at 1300deg work ok? I know they just need to be heated, then cooled quickly? Is there anything I should be aware of before? Thanks for any help.

Centigrade or Fahrenheit? The melting point of gold is 1064 °C / 1947.5 °F,

 

[Assembler]

Centigrade or Fahrenheit? The melting point of gold is 1064 °C / 1947.5 °F,

Releasing or freeing from the iron is the idea here. Melting point is not the goal.

 

[ConceptualizedNetherlandr]

Releasing or freeing from the iron is the idea here. Melting point is not the goal.

Never the less, I ask for clarification as to his temperature scale. Do you not see the importance?

 

[Dieseltechjon]

Centigrade or Fahrenheit? The melting point of gold is 1064 °C / 1947.5 °F,

It would be Fahrenheit. We definitely don't want to melt it. From the looks of it we just want to get it nice and toasty and dowse it in water. Throw it in a rock tumbler for a spell and see what comes out.