kratos Posted July 8, 2013 Share Posted July 8, 2013 Hello everybody!What's up?This is an awesome forum!I am lucky i found something like this!There is so much info and knowledge in here!Didn't know that there were so many people who are interested in these stuff!Could you please help me a bit with a rock my father found?I ll upload pics.It seems to have gold on it but also another strange grey/blue stone that i cant figure what it is.I would be really greatfull to anyone who can help!These are the pics of the stone: http://imageshack.us/photo/my-images/843/snrl.jpg/ Quote Link to comment Share on other sites More sharing options...
Morlock Posted July 8, 2013 Share Posted July 8, 2013 My guess is you have galena on chalcopyrite. The goldish color would be chalcopyrite and the blue-gray is the galena.Just a guess.You can do a streak test to verify. http://geology.csupomona.edu/mineral/streak.htmhttp://www.mindat.org/min-955.htmlhttp://www.mindat.org/min-1641.html Quote Link to comment Share on other sites More sharing options...
kratos Posted July 9, 2013 Author Share Posted July 9, 2013 Thanks for your help Morlock! Could the goldish color be gold or its more possible for it to be chalcopyrite?If its not galena on chalcopyrite what else could it be?Also can anyone estimate the price that this stone has? Quote Link to comment Share on other sites More sharing options...
Morlock Posted July 9, 2013 Share Posted July 9, 2013 It's certainly not gold although it could contain a miniscule amount. Mostly likely galena on either pyrite or chalcopyrite and I'm sticking with that. Do the streak tests and let us know the results. Need a white piece of unglazed tile for that. not much value I'm afraid. Depends on size and quality of the crystals. Quote Link to comment Share on other sites More sharing options...
elder-miner Posted July 10, 2013 Share Posted July 10, 2013 Not Galena.Appears to be Arsenopyrite = Iron arsenic sulfideWith some chalcopyrite Quote Link to comment Share on other sites More sharing options...
saginaw72 Posted August 17, 2013 Share Posted August 17, 2013 Very helpful and instructive links. Thanks Morlock!Saginaw Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.