Yukon99669
Jr. Member
I need a bit of advice on getting a cpl assays done.
I’ve been prospecting a new claim in Colorado (Gilpin County). We’re in and adjacent to a year round creek that comes from a spring that originates a ways beyond the claim. We’re near the lowest point of the stream that ultimately joins Upper Clear Creek.
Despite being quite rocky, the ground is nicely stratified and easy to read. About 3 feet down there is dense layer of red oxidized soil. Below that is a dense dark black almost clay layer that is insanely full of mica/pyrite/etc… Below that layer is a gravel layer sitting on rock (not sure if we’re on bedrock yet, but it’s a solid rock layer that actually has some deep hollow sounding sections.
We’re running a Trommel w/ 1/4” screen into a Gold Hog sluice that feeds into a flared section of vortex mat (Gold Cube Type).
We then classify cons and reduce them with a very finely tuned Gold Hog Washer Mat….finishing w/ a pan.
We’re finding almost nothing above -100 mesh. But there is a significant amount of super-fine gold in the -100 range. Actually most is -200.
My intention is to get a fire assay on my -100 cons (after the washer mat and before panning) for Au/Ag initially.
Pending promising results I would then get an XRF Analysis. I’d use the XRF to nail down a smelting flux recipe.
Am I on the right track to deal with this material?
Regarding the assay…I’m assuming that I would want to leave in magnetics? I usually pull them out ahead of the washer mat step.
Any other advice in this department?
I’ve been prospecting a new claim in Colorado (Gilpin County). We’re in and adjacent to a year round creek that comes from a spring that originates a ways beyond the claim. We’re near the lowest point of the stream that ultimately joins Upper Clear Creek.
Despite being quite rocky, the ground is nicely stratified and easy to read. About 3 feet down there is dense layer of red oxidized soil. Below that is a dense dark black almost clay layer that is insanely full of mica/pyrite/etc… Below that layer is a gravel layer sitting on rock (not sure if we’re on bedrock yet, but it’s a solid rock layer that actually has some deep hollow sounding sections.
We’re running a Trommel w/ 1/4” screen into a Gold Hog sluice that feeds into a flared section of vortex mat (Gold Cube Type).
We then classify cons and reduce them with a very finely tuned Gold Hog Washer Mat….finishing w/ a pan.
We’re finding almost nothing above -100 mesh. But there is a significant amount of super-fine gold in the -100 range. Actually most is -200.
My intention is to get a fire assay on my -100 cons (after the washer mat and before panning) for Au/Ag initially.
Pending promising results I would then get an XRF Analysis. I’d use the XRF to nail down a smelting flux recipe.
Am I on the right track to deal with this material?
Regarding the assay…I’m assuming that I would want to leave in magnetics? I usually pull them out ahead of the washer mat step.
Any other advice in this department?
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