5 posts in this topic
I am very interested in pocket hunting. There is not a lot of info on the net about this subject but what there is I think I have studied most of it. Where I feel deficient in my pocket hunting education is old petrology terminology. It seems like over the last 100 years there have been many changes in the names of rocks and minerals. Following is an excerpt from the Canadian GPEX gold forum which may help to illustrate the problems which beset the modern prospector when he tries to decipher what the old-timers were saying.
"The chemical or mineral composition of this pocket formation is generally silica, lime, soda, alumina, potash, copper, lead, magnesia, iron, gold, quartz and water, although these conditions differ in each locality. (Here I note a problem in terminology. The author uses 19th century mineral terms that I have difficulty translating. Calcite was not used in those days, but the term for it he used was lime, so I substituted calcite in places for today's readers. Soda and potash may have referred to sodium and potassium feldspars, but I'm guessing here. Magnesia may have been magnesite, MgCO. I don't know what the contemporary equivalent for alumina is. He interchanged terms for elements with those for minerals, so the particular minerals containing lead, sulfur and copper may have been understood by his contemporaries, but I don't know what he meant. Chloride puzzles me. Chloride had a meaning among mining men in those days that is no longer used and leaves me mystified)"
Hopefully someone with experience in this area will school us prospectors that lack the ability or knowledge to translate the old terminology into a more modern one. I don't believe I am the only prospector who thirsts for this knowledge or could benefit from publication of it.
Thought i would post what i came across today, not sure how common stuff like this is still set up in the US but over here in Australia it isnt that common anymore with many being broken down and sold off or bits and pieces stolen over the years.
Its a Stirling 3 head Battery, used to pulverise ore releasing the gold , looks to have been reused in the 80s maybe even 90s as there is some fairly modern hoses etc connected but overall its a great piece of antique prospecting equipment....if it wasnt so bloody heavy i would have thrown it in the back of the truck and set it up at home :) hahhahaha
By Clay Diggins
Gosh it's that time again. Spring has sprung across all the states and prospecting is going into full swing for the season.
Land Matters updated their Mining Claims Maps last Friday morning. We also updated them on the 15th of May and May 1 and April 15 - you get the idea.
In any case Land Matters always provides the most up to date claims mapping available at any price. We serve up thousands of these maps every hour and those numbers keep growing so I know folks are getting their prospecting mojo on with the help of Land Matters. That's a good thing!
We've got some new tools coming soon to make your research even easier and more productive. Keep an eye out for those updates soon.
For those of you who are Claims Advantage Members you may have noticed there has been a significant change to one of the most famous mining districts in California. New ground opening up for the first time since 1890. This is a major opportunity for any serious prospector.
Here's the number of claims closed so far this mining year:
Land matters has provided maps of all those 27,127 Closed Claims for our Claims Advantage Members.
After an unfruitful couple days in NorCal (only a couple specks), heading down to Crow Creek with the GPAA guys for 5 or 6 days and hoping Steve left something behind! It's the only place I've found anything worth talking about so far, so here's to doubling it! GMT, ATX, Sluice and Pan...any other suggestions?
By Steve Herschbach
This is an interesting dredge. I was really into subsurface dredges for portability. Keene for a brief time sold a set of inflatable pontoons, so I got a pair and in 1999 put this 5" subsurface dredge together. The frame was homemade out of stock aluminum, and the pontoons were held in place with plastic drums I split in half length-wise. The tube was a standard Keene 5" subsurface dredge tube of the time. The old black marlex version was a pain because the tray clipped on at the forward end. I had to reach into the middle of the assembly to release the clips, and then the tray would drop down in front. In current this was a problem for sure as the current would want to grab the tray and knock it down. The later granite gray marlex tubes were improved with the release clips at the rear, which were easy to grab from the back of the dredge. The rear of the tray would drop down and was easily slid out to the rear. Much better. 5.5HP Honda powered Keene P-180 pump with 5" suction nozzle. Nice dredge, very compact and light-weight.
This was on the Mills Creek Cooperative claims on upper Mills Creek on the Kenai Peninsula of Alaska. We got a lot of nice gold in the stretch in the picture as a narrow canyon widened out at this point. Bob(AK) is a member of the forum, and he also did very well here.
Another couple photos of the dredge taken with the crappy digital cameras of the day while being built in my back yard.