DesertNuggets Posted May 2, 2012 Report Share Posted May 2, 2012 Anyone have any pics of it in the desert? Or a good example pic of it? I did a google search and saw a rainbow of colored rocks which helped me none. Thanks! Quote Link to comment Share on other sites More sharing options...
beepinpete_WA Posted May 2, 2012 Report Share Posted May 2, 2012 Hi DNGreenstone or Greenschist is a metamorphic or mafic volcanic rock, they are rocks that have been changed in the rock cycle due to heatand pressure into a new form of rock and are one of the major rock types to hold gold and other matalic minerals.Here in Western Aus our Greenstone is a metamorphic granite and is the main rock type that all our major golddeposits are associated with, when looking at a Geo map of any prospective area try to concentrate on the Greenstonebelts and within those belts on the contact or shear zones between other rock types.. Pete Quote Link to comment Share on other sites More sharing options...
fredm Posted May 2, 2012 Report Share Posted May 2, 2012 The best thing is to get a local sample as the rock type varies from area to area...fred Quote Link to comment Share on other sites More sharing options...
Reno Chris Posted May 2, 2012 Report Share Posted May 2, 2012 First thing to remember is that not all green colored rocks are greenstone. I get people showing me all types of things including green quartz that they think is greenstone.Greenstone is typically metamorphosed basalts, and not metamorphosed granite. Greenstone is a basic rock with lots of iron and limited amounts of silica. Greenschist is technically a level of metamorphic force. Part of the confusion on this is the differences in geologists general use and historical use of these terms. Here are some photos, and the only significant different in the Australian specimen is that it is a bit more weathered than the other two. Quote Link to comment Share on other sites More sharing options...
Jonathan Porter Posted May 2, 2012 Report Share Posted May 2, 2012 Might help to take a look at this video I shot with Chris Ralph and Steve Herschbach last year in West Australia.JPhttp://www.minelab.c...deo-blog-part-2 Quote Link to comment Share on other sites More sharing options...
frank c Posted May 3, 2012 Report Share Posted May 3, 2012 Love that Hershback comment, "you don't have to pay attention to all the rules just stick yer coil over EVERYTHING"Yeah Baby thats the ticket. Quote Link to comment Share on other sites More sharing options...
Uncle Ron Posted May 3, 2012 Report Share Posted May 3, 2012 I just recently hit a nice pocket in a small quartz stringer inside a country rock of greenstone schist ... I'll try to post a photo or two here ... One is about .33 ozt and the other is just under 3 ozt. ... Heavy! Also found a 2 ozt. ... I'll take better pix but here's a couple .. I thnk my total gold haul is just under 4 ozt. ... Butt ugly gold and I'm thinking of just grinding and refining it into bullion ... I chased this lead for several years ... It took me in a big circle , then , BAM an upside down signal I thought was ferrous ... Nope, down about 16" was the screamer ... Funny thing, I've prospected a circle around this spot for a dozen years for the occasional dink ... This pocket is a local mother lode...Cheers, yer ... Happy Unc in the Dubyah Quote Link to comment Share on other sites More sharing options...
LuckyLundy Posted May 3, 2012 Report Share Posted May 3, 2012 Ron, Ugly or not it's the right color! Each gold local will have different signs to learn with color of rocks to type of rocks, keeps ya on your toes...lolLuckyLundy Quote Link to comment Share on other sites More sharing options...
DesertNuggets Posted May 4, 2012 Author Report Share Posted May 4, 2012 Great info! Thanks everyone! Quote Link to comment Share on other sites More sharing options...
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