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Let's Rock => Identifications of Materials => Topic started by: Bobbymoon on July 20, 2022, 07:09:40 PM

Title: Thrift store finds Chrysocolla?
Post by: Bobbymoon on July 20, 2022, 07:09:40 PM: [ You are not allowed to view attachments ] [ You are not allowed to view attachments ] Found at the local thrift store. I have tried to figure it out…very brittle and seems light for its size. Is it chrysocolla?

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I am guessing pic three is moss agate?
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Pick four was labeled Lepidote with albite.
Title: Re: Thrift store finds Chrysocolla?
Post by: vitzitziltecpatl on July 21, 2022, 05:49:52 PM: That blue reminds me more of copper sulfate than chrysocolla.

Definitely a moss agate in the third shot.

Need a mineralogist - or a more knowledgable hound than me - for that last one.
Title: Re: Thrift store finds Chrysocolla?
Post by: lithicbeads on July 22, 2022, 11:13:53 AM: That is nice lepidolite. Some of it turns brown when left in sunshine for long periods of time.
Title: Re: Thrift store finds Chrysocolla?
Post by: Bobbymoon on July 23, 2022, 01:21:39 PM: copper sulfate should dissolve right?
Thanks for the reply’s!!!
Title: Re: Thrift store finds Chrysocolla?
Post by: vitzitziltecpatl on July 23, 2022, 03:56:14 PM: Yeah, I've bought copper sulfate in solid form, crushed it and dissolved it to make tree root killer.
Title: Re: Thrift store finds Chrysocolla?
Post by: Bobbymoon on July 24, 2022, 06:37:42 PM: OK, i have dropped a piece in boiling water and left it for a couple of days, and it doesn't dissolve
Title: Re: Thrift store finds Chrysocolla?
Post by: vitzitziltecpatl on July 25, 2022, 06:58:30 AM: Excellent. Is it translucent?

That's an incredibly vivid blue, and the greens nearby indicate the colors are displaying pretty well on my monitor. Nice rock!
Title: Re: Thrift store finds Chrysocolla?
Post by: R.U. Sirius on July 25, 2022, 10:24:55 PM: That's an amazingly intense blue... so much so that I wonder whether it might be slag. Are there any signs of bubbles? How translucent is it?
Title: Re: Thrift store finds Chrysocolla?
Post by: Enchantra on July 25, 2022, 10:34:05 PM: I'm thinking gem silica with that intense blue/green...
Title: Re: Thrift store finds Chrysocolla?
Post by: vitzitziltecpatl on July 26, 2022, 07:33:47 AM: Gem silica is also what I was wondering about when I asked about translucency.
Title: Re: Thrift store finds Chrysocolla?
Post by: Bobbymoon on July 26, 2022, 06:41:13 PM: The edges are translucent green but the inside is pretty opaque…there’s bands that seem more clear and seem like they would be translucent
Title: Re: Thrift store finds Chrysocolla?
Post by: Bobbymoon on July 26, 2022, 06:50:48 PM: Here is a couple more photos
Title: Re: Thrift store finds Chrysocolla?
Post by: Bobbymoon on July 26, 2022, 06:52:07 PM: Penny for scale
Title: Re: Thrift store finds Chrysocolla?
Post by: AgateLicker on July 27, 2022, 06:52:00 AM: That breaks like Turquoise. You may have come up very nicely there! I mean, even moreso than previously surmised!
Title: Re: Thrift store finds Chrysocolla?
Post by: gunsil on July 27, 2022, 08:24:24 AM: Chrysocolla crumbles like that too. Looks too crumbly to cut an polish without stabilizing so it isn't gem silica but it does look to me like chrysocolla.
Title: Re: Thrift store finds Chrysocolla?
Post by: AgateLicker on July 27, 2022, 04:01:11 PM: Thanks for the heads up!
Title: Re: Thrift store finds Chrysocolla?
Post by: R.U. Sirius on July 27, 2022, 11:45:19 PM: The fracturing is also suggestive of opal. Owyhee blue opal?
Title: Re: Thrift store finds Chrysocolla?
Post by: Bobbymoon on August 05, 2022, 05:13:26 AM: Thanks everyone!! I have a hardness tester now so I will check it out with that and post again. Been distracted bought a huge lot of lapidary equipment and stones from a person downsizing so have been busy trying to make everything fit in my garage.
Title: Re: Thrift store finds Chrysocolla?
Post by: vitzitziltecpatl on August 05, 2022, 06:07:29 AM: Congrats on the lot you picked up. That's the best way to expand, for sure.
Title: Re: Thrift store finds Chrysocolla?
Post by: Bobbymoon on August 05, 2022, 06:17:56 AM: Quote from: gunsil on July 27, 2022, 08:24:24 AM
Chrysocolla crumbles like that too. Looks too crumbly to cut an polish without stabilizing so it isn't gem silica but it does look to me like chrysocolla.

By stabilizing do you mean glue to harder materials then cab? Or is there a treatment you do to the rock itself?
Title: Re: Thrift store finds Chrysocolla?
Post by: Bobbymoon on August 08, 2022, 06:18:47 AM: Quote from: vitzitziltecpatl on August 05, 2022, 06:07:29 AM
Congrats on the lot you picked up. That's the best way to expand, for sure.

Thanks! Yeah it’s a lot of stuff and a lot to learn how to use …lol
Title: Re: Thrift store finds Chrysocolla?
Post by: Bobbymoon on August 08, 2022, 06:21:06 AM: Pretty sure it is chrysocolla did the wet finger test and it stuck to my finger thanks everyone for the help and input!!!