Coating on Vein Rock ?

[605dano]

I've been pulling samples out veins and all the fractured surfaces have this brownish yellow coating on them. Some of the veins are highly fractured so there is a lot of this mineral in them. Is this a limonite or other iron coating? I'm 10 - 15 feet into the vein from the surface and was curious if anyone could enlighten me?

 

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[gold tramp]

best and only way in my book its crush n pan if you get yellow metal keep digging if not next!
Good luck .......

 

[pippinwhitepaws]

iron oxides...perhaps some sulfide... imo

 

[dave wiseman]

....and if your 10-15 feet into the vein are you finding gold in that vein or just hoping for some.Looks like iron oxide of some sort.Get a copy of Handbook for Prospectors by VonBernewitz or newer editions by Richard Pearl.Sometimes the brown,red,yellow oxides themselves carry gold.The book is available online new or used at a large public/university library.That quartz looks kind of glassy.

 

[605dano]

I had some excavation done to terrace a building site into a steep hill I had. It exposed several veins that I've been sampling. A couple of iron stained clear quartz samples assayed 4 gr.per ton. Less than 1/4 mile away was an old mine that was very rich with specimen gold. So mainly looking and hoping as a hobby. Some of it is very pretty and different rock and I'm enjoying trying to figure out what is what. Lots of different colors and textures with some sulfides but with hard rock mining being the way it is right now I don't have the time or money to do more than keep looking. If I find a nice specimen then I'll get more excited.

 

[dave wiseman]

Might be a good prospect..keep sampling and keep a low profile if it starts looking good.

 

[Dustedyou]

sulfides would be my guess..