Yet another find from the other day...Rainbow Pyrite

[fuss]

Found this sand or limestone rock with quite a bit of Calcite and various pyrite patches. There are areas of what looks like Rainbow Pyrite as well as some interesting pyrite crystals (very small). Does Rainbow Pyrite look right? I had to do a search to know to call it that..Thx

 

[Eu_citzen]

Is rainbow pyrite another new marketing gag?
Looks like good old tarnished pyrite to me, though.

 

[stdenis_jd]

perhaps chalcopyrite

 

[stdenis_jd]

Yeah nevermind...there aren't any indicators of the presence of copper, it's regular tarnished pyrite like EU said, octahedral habit.

 

[fuss]

Yes I am sure it is..I pulled the name from a google image..now I see its from a healing/metaphysical site..in a rush for a name

Is rainbow pyrite another new marketing gag?
Looks like good old tarnished pyrite to me, though.

 

[fuss]

it does resemble Chalcopyrite and looks a lot like the sample here:

https://geology.com/minerals/chalcopyrite.shtml

Thx

perhaps chalcopyrite

 

[fuss]

hearing it called "tarnished" makes me want to toss in the rock pile out back..Ill stick with Chalcopyrite...lol..though it may end up there anyway.

Yeah nevermind...there aren't any indicators of the presence of copper, it's regular tarnished pyrite like EU said, octahedral habit.

 

[Indian Steve]

While it is nice to get an ID, It is a very nice rock anyway!

 

[stdenis_jd]

hearing it called "tarnished" makes me want to toss in the rock pile out back..Ill stick with Chalcopyrite...lol..though it may end up there anyway.

nah don't do that - octahedral pyrite isn't rare, but it's not as common as cubic. I think it's pretty cool

 

[Eu_citzen]

hearing it called "tarnished" makes me want to toss in the rock pile out back..Ill stick with Chalcopyrite...lol..though it may end up there anyway.

It's jibberish for oxidized. Tarnished per se isn't bad. A sure way to test chalcopyrite vs pyrite is to see if a knife scratches it.
Yes - chalcopyrite
No - Pyrite