So I find this rock...Pyrite or???

[roadie]

I find this "rock" at work on a piece of mining equipment.... First thing I noticed was it feels HEAVIER than it looks so first thing I do is check it with a magnet....nope, its not magnetic. (magnet wont stick, tried several.) Then I read iron pyrite is not magnetic so its a moot point. Then I get out my volt meter....huh....its got continuity all the way across "The rock". Couple of the more rocky parts don't have continuity..WTHeck. Non-magnetic, carries voltage....I dunno but I'd like to find out. :lol: Iron Pyrite or


Heres a few pics. Its about 3"X2" or so. I took a file and filed on a piece, it feels really soft. The filed parts becomes a lighter shade of gold. I don't know enough about it to make a determination.

 

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[Breezie]

Hello, first of all WELCOME to the forum! I"m not the mineral person, but it looks like Chalcopyrite, which is copper pyrite (copper iron sulphate.) Chalocopyrite will tarnish to iridescent blues, purples, yellows and greens. It is sometimes called the 'peacock' ore because of these colors. It will also luster like gold. Interesting find, Breezie

 

[roadie]

Hello, first of all WELCOME to the forum! I"m not the mineral person, but it looks like Chalcopyrite, which is copper pyrite (copper iron sulphate.) Chalocopyrite will tarnish to iridescent blues, purples, yellows and greens. It is sometimes called the 'peacock' ore because of these colors. It will also luster like gold. Interesting find, Breezie

Thank you Breezie for the welcome and response. I had read about Chalcopyrite a little. I think you may be right. It's rather brittle to.

 

[Tuberale]

Welcome to TNet!

I'm not a minerologist either. But it looks like chalcopyrite to me, too. (Good ID, Breezie.) Interesting thing about pyrites and chalcopyrites: they are often associated with minute gold too. Would be necessary to do an assay, and if this is the only sample you have, not worth the cost. Some of the chalcopyrite I've found near Quartzville, Oregon is much more irredescent, especially in the blue-greens, than this specimen. Enlargements of the photo seem to show small metallic inclusions, which could silver, arsenic, or a host of other metals common in sulphide zones.

 

[trixie charger]

Hello, first of all WELCOME to the forum! I"m not the mineral person, but it looks like Chalcopyrite, which is copper pyrite (copper iron sulphate.) Chalocopyrite will tarnish to iridescent blues, purples, yellows and greens. It is sometimes called the 'peacock' ore because of these colors. It will also luster like gold. Interesting find, Breezie

If it is (I don't think it is) Arsenian Pyrite its 0.37% Gold! the pic is a Arsenian nugget that had dissolved leaving the gold trace left. Although you could make a "Pretty Penny" on copper

 

[kuger]

Hello, first of all WELCOME to the forum! I"m not the mineral person, but it looks like Chalcopyrite, which is copper pyrite (copper iron sulphate.) Chalocopyrite will tarnish to iridescent blues, purples, yellows and greens. It is sometimes called the 'peacock' ore because of these colors. It will also luster like gold. Interesting find, Breezie

WOW!!!Breezie,for not being a mineral person,you sure knocked that one outta the park!!! I am a seventh generation miner and am not a geologist but have seen a rock or two

 

[Breezie]

Hello, first of all WELCOME to the forum! I"m not the mineral person, but it looks like Chalcopyrite, which is copper pyrite (copper iron sulphate.) Chalocopyrite will tarnish to iridescent blues, purples, yellows and greens. It is sometimes called the 'peacock' ore because of these colors. It will also luster like gold. Interesting find, Breezie

WOW!!!Breezie,for not being a mineral person,you sure knocked that one outta the park!!! I am a seventh generation miner and am not a geologist but have seen a rock or two

Thanks for the kudos Kuger! Wow, 7th generation miner; I imagine you have seen more than a rock or two! We have a fairly large mine here, and when I was growing up, a friend of our family use to bring me rocks from the mine, and that started my collection. I really don't know that much about minerals; just enough to be dangerous!

 

[kuger]

Hello, first of all WELCOME to the forum! I"m not the mineral person, but it looks like Chalcopyrite, which is copper pyrite (copper iron sulphate.) Chalocopyrite will tarnish to iridescent blues, purples, yellows and greens. It is sometimes called the 'peacock' ore because of these colors. It will also luster like gold. Interesting find, Breezie

WOW!!!Breezie,for not being a mineral person,you sure knocked that one outta the park!!! I am a seventh generation miner and am not a geologist but have seen a rock or two

Thanks for the kudos Kuger! Wow, 7th generation miner; I imagine you have seen more than a rock or two! We have a fairly large mine here, and when I was growing up, a friend of our family use to bring me rocks from the mine, and that started my collection. I really don't know that much about minerals; just enough to be dangerous!