I noted on here an accusation that a gold specimen consisted of gold foil glued to a piece of quartz and not actually part of the quartz or inset into it, protruding from it.
I also note that the specimen in question may have turned out to be a fake and was on sold in good faith by the person who purchased it on Ebay. I have not seen it in person and therefore cannot make a comment but do know that should I examine it then I would know for certain whether it was or was not a genuine specimen.
Gold Can appear to be merely ‘painted’ onto the rock. The photo below is not clear but it does show the remains of what was once a splendid specimen. It was given to me by J.A.White. the grandson of Aspinal of Aspinals Terrace in the Shotover. He obtained it during a trip to the Morning Star in Preservation Inlet. When he gave it to me it had a little dirt on it so I got a toothbrush to clean the dirt off and within moments nearly all of the gold have been cleaned off as well and it turned out that the gold is merely a thin layer as though ‘painted’ onto the surface of the rock and in no manner what so ever is it actually within the quartz itself as one might naturally expect.