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Gold Prospecting
Hard Rock Gold Prospecting
ironstone?
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<blockquote data-quote="mbasko" data-source="post: 138312" data-attributes="member: 4485"><p>Going off the colour & fine grain I would think it would be basalt. Detectors like its high iron & magnesium content.</p><p>Usually a dark grey to black it can also be brown > reddish brown with weathering. </p><p>If it did contain gold it would most likely be very minimal & measured in parts per million although basalt can host gold deposits. Basalt caps can also cover auriferous leads.</p><p>The Fe & Mg would be the likely cause of getting the SDC's attention.</p><p>Quartz can be an indicator of gold but not a certainty.</p><p><a href="http://www.minelab.com/aus/treasure-talk/eight-natural-geologic-signs-pointing-toward-gold" target="_blank">http://www.minelab.com/aus/treasure-talk/eight-natural-geologic-signs-pointing-toward-gold</a></p></blockquote><p></p>
[QUOTE="mbasko, post: 138312, member: 4485"] Going off the colour & fine grain I would think it would be basalt. Detectors like its high iron & magnesium content. Usually a dark grey to black it can also be brown > reddish brown with weathering. If it did contain gold it would most likely be very minimal & measured in parts per million although basalt can host gold deposits. Basalt caps can also cover auriferous leads. The Fe & Mg would be the likely cause of getting the SDC's attention. Quartz can be an indicator of gold but not a certainty. [url]http://www.minelab.com/aus/treasure-talk/eight-natural-geologic-signs-pointing-toward-gold[/url] [/QUOTE]
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Gold Prospecting
Hard Rock Gold Prospecting
ironstone?
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