Calculate Your "PAY" Gold Mining

[goldhog]

Spent about an hour playing with this....
Figured it would be fun for people to play with.
It's not real complex but fun to dream.


recoveryrates

 

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[Oakview2]

Nifty tool

 

[omnicron]

Doc, is that figured at 100% of spot? You should add in the ability to change that value. I know I sent you lots of gold last year but with shipping, you being busy, the turn around was quit long. I had to inturn sell gold locally (get bent over with no lube) and they usually only pay between 65-75%

 

[goldhog]

Doc, is that figured at 100% of spot? You should add in the ability to change that value. I know I sent you lots of gold last year but with shipping, you being busy, the turn around was quit long. I had to inturn sell gold locally (get bent over with no lube) and they usually only pay between 65-75%

Yes, there is more that I could add too, but just had an hour to kill and figured it would be fun.
Also, we have large ops that use this sheet for testing, measuring, etc.
I just figured I would make it web based form and share since it is normally in excel.

 

[johnnysau]

Made one of these a couple of years back, pretty fun to mess with, I like checking the numbers these show throw out to see if they are in the ballpark,
if the numbers are true it tells me there is lots of gold going OUT the box on occasion. But you never know really unless you check for it.


johnnysau

 

[Professional Miner]

Nice tool Doc....

Good stuff...

When I measure a single ton or single yard of material....and there are pros and cons to any way one uses, but I like to calculate the actual amount of through-put...the amount actually going down the sluice boxes....I attempt to take out the percentage of large rocks and try to figure what the sluice box is seeing. while this gives you a much less production rate, as most folks use what you actually dig as to the capacity of a gold plant...your recovery rate goes up a lot...because most of the spoils are part of your calculations...

This is a matter of choice, it is just my preference.....I've mined areas where the boulders and rocks made up nearly equally to the small gravel in volume. So you moved 100 yards that day, but only processed 50 yards of through-put...what was your recover rate...per 100 yards or 50 yards Only 50 yards saw the sluice box....but the excavator touched 100 yards.

I figure my mining cost to what I actually move or excavate, but calculate my recovery to the actual through-put rate.

I like your calculator...it is a good tool...

Professional Miner

 

[Lanny in AB]

That is a fun little calculator Doc. Thanks for posting the link.

All the best,

Lanny

http://www.treasurenet.com/forums/metal-detecting-gold/69-bedrock-gold-mysteries.html

 

[kevin1]

Geez, according to that thing I owe nature a lot of money!

 

[goldhog]

Nice tool Doc....

I've mined areas where the boulders and rocks made up nearly equally to the small gravel in volume. So you moved 100 yards that day, but only processed 50 yards of through-put...what was your recover rate...per 100 yards or 50 yards Only 50 yards saw the sluice box....but the excavator touched 100 yards.


Professional Miner

Yes, that's quite true.
Those factors will also impact an ops feed rate as well.
We just finished working with an op in Africa that had 80% loss rates.
Big problem was slurry viscosity, but also sediment rate / slurry concentration was VERY high per yard.
Very few boulders and large rocks. Mostly small gravels, sand and fine clays.
So while the plant was rated at 120 tons an hour, they really are limited to about 60 - 80.
Doc

 

[Professional Miner]

That's something each prospector has to learn the hard way...the same piece of equipment will not necessarily will not work well from one water shed to another just because of the different amounts of sand, cobbles and boulders that make up the material being washed....like you said...a 120 ton an hour machine had to be slowed to 60 ton a hour, nearly 50 percent of its real capacity....when in a production environment, and the bottom line of the operation in question, reducing your production rates by 50 percent sometimes is a hard pill to swallow... but sometimes necessary.

Even in a recreational setting...sometimes you have to feed your equipment more slowly in one location and more faster in another location...It would help if the recreational prospector understood this better what your speaking of Doc...even their weekend outings would produce more gold...its a hard thing to teach and comes from experimentation and comparing results, testing the tailings and so forth...

Appreciate your comments Doc...

Professional Miner