Olivine or something else?

[Steve1236]

Forgot I grabbed a specimen of this while I was looking for the secondary copper minerals, it was still in the backpack, I originally thought olivine but know I'm not so sure, any opinions?

 

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[fuss]

could be epidote, hard to tell unless you can get higher magnification images.

 

[Kray Gelder]

How about something else. You said copper related, and olivine has no copper. It sure looks like olivine! Did some digging and found Volborthite, 3 atoms copper per molecule, plus vanadium, oxygen and water molecules, too. AKA vanadite. Forms encrusting masses, and is found in several locations in Arizona.

 

[Steve1236]

I'll look on mindat but it was a vein and mostly on the surface of the host, it was about 5 feet from where I was picking up the copper minerals.

 

[Steve1236]

Tiny duftite crytals on matrix maybe, duftite is listed?
Vanadinite is listed but its crystals are red..

 

[Steve1236]

My phone doesn't take the best close ups.

 

[DDancer]

I've found the same material your showing there Steve and never have figured it out. My best specimen of it, hidden somewhere in storage, is a plate that has a dark green crust of crystals with a some what radiating crystal pattern. The crystals are flat and tabular and the luster is glassy. It only ever exists as a kind of crust, never very thick in a vug, or like your specimen disseminated thru the host rock. Color ranges from the light green you have to an almost malachite dark green. Hardness is between 6 and 7 and like yours occurs along with copper minerals. I've always been of the opinion its some form of altered chryscola.

 

[Steve1236]

DDancer I went to a rock and gem shop in Wickenburg to show the blue minerals, on ajoite they said they dont know, I'd have to have it tested which would cost $$ but it has been found in that location they said, it's mostly chrysocolla in brecciated quartz they said but they also said and actually almost accused me of claim jumping that the deep blue I'm pointing out is something called linarite, they said it looked like specimens they've gotten from the (newsboy)mine which is several miles from my spot, I literally got my phone out to Google earth to show the guy the exact spot and even invited the guy to come out with me and take a look, he was more cool after that, I gave him my number, they also offered me ten bucks for the specimen in picture 6 in the other post so they now have one of my specimens, I'm kind of hoping he does call, I could use the expertise out there.

 

[DDancer]

Hopefully they will call you Steve and have a visit on your digs, dare say I hope they are honest as well. I take it you didn't bring the samples in this thread for ID?
For anyone wondering about the pictures Steve is talking about in this last post he has some good stuff showing in this thread : http://www.treasurenet.com/forums/r...lp-identifying-secondary-copper-minerals.html

 

[Steve1236]

I think they were jerking my chain lol, they never called and that's not linarite, I took it somewhere else and they said it's all chrysocolla, maybe a little malachite in some others, the other stuff I was hoping was gem silica I dont think it is, I think that's some kind of feldspar maybe not quartz/chalcedony, I honestly dont know.