Learning Center What is a mineral?The most common minerals on earth Information for Educators Mindat Articles The Elements The Rock H. Currier Digital Library Geologic Time

Minerals by Properties Minerals by Chemistry Advanced Locality Search Random Mineral Random Locality Search by minID Localities Near Me Search Articles Search Glossary More Search Options

The Mindat Manual Add a New Photo Rate Photos Locality Edit Report Coordinate Completion Report Add Glossary Item

Mining Companies Statistics Users Mineral Museums Clubs & Organizations Mineral Shows & Events The Mindat Directory Device Settings The Mineral Quiz

Photo Search Photo Galleries Search by Color New Photos Today New Photos Yesterday Members' Photo Galleries Past Photo of the Day Gallery Photography

Discussions

💬 Home 🔎 Search 📅 Latest

╳Discussions

💬 Home 🔎 Search 📅 Latest

Groups

Recent Images in Discussions

Identity HelpCan anyone help me identify this raw crystal I was given that was found in a collectors junk clearout

17th Apr 2024 00:52 UTCKatie Ragans

It's color varies with lighting. Can be green at times or brown an a one corner has slight rainbow inclusion with rotation an lighting hitting it.

Questions Answered
Can it scratch glass? : Yes
Can you scratch it with your fingernail? : No
Is it light/heavy for the size? : Heavy

17th Apr 2024 01:06 UTCFrank K. Mazdab 🌟 Manager

To add additional photos to a thread, reply to yourself and include a photo in the reply. You can reply to yourself as many times as necessary. I'm going to close your other threads so please re-add your other photos/comments to this thread. Once you've done so I'm going to delete the two other duplicate threads.

17th Apr 2024 01:39 UTCKatie Ragans

Additional photo

17th Apr 2024 01:40 UTCKatie Ragans

Additional photos

17th Apr 2024 01:41 UTCKatie Ragans

Another photo

17th Apr 2024 01:42 UTCKatie Ragans

Another

17th Apr 2024 01:43 UTCKatie Ragans

Another

17th Apr 2024 01:44 UTCKatie Ragans

Lastly

17th Apr 2024 01:46 UTCEd Clopton 🌟 Expert

I'm guessing that it didn't come with any locality information. Can you tell us where (town, state/province, country) you acquired it, or where the collector lived? That may be a clue.

17th Apr 2024 03:32 UTCKatie Ragans

Not at all it came with alot in a frame work holder with printed labels most worn off can't read them and some still glued in that one happened to be free came off and caught my eye the most

17th Apr 2024 03:33 UTCKatie Ragans

This also

17th Apr 2024 02:51 UTCKevin Conroy Manager

It looks like glass.

17th Apr 2024 03:31 UTCKeith Compton 🌟 Manager

My thoughts too

17th Apr 2024 03:34 UTCKatie Ragans

It has rock formation on bottom but yes is glassy at the top

17th Apr 2024 15:17 UTCUwe Kolitsch Manager

Agree.

17th Apr 2024 03:41 UTCKeith Compton 🌟 Manager

Katie

SO was the specimen part of the rock collection in the subsequent photos?

If so, why not say so at the beginning of the thread to give context to the acquisition?

Your photos are not very clear.

If you can see any bubbles at all in the specimen then it is glass / slag glass.

The most likely mineral it resembles is quartz (smoky).

17th Apr 2024 14:08 UTCKatie Ragans

Thanks I did mention in collectors junk clear out. . I was only looking to identify this one as the rest I know or can make out the identifying label. Except imaging attactching now...this one looks like goldsheer or something i cant find when google it.

17th Apr 2024 16:13 UTCEd Clopton 🌟 Expert

There is a variety of obsidian known in the lapidary and metaphysical worlds as "golden sheen" obsidian. This piece looks like obsidian, so perhaps that's what the label once said.

17th Apr 2024 23:18 UTCKatie Ragans

It does not have any bubbles. There are multiple rainbow inclusions probably from it being dropped probably smokey quartz.

18th Apr 2024 00:05 UTCKeith Compton 🌟 Manager

This photo does not appear to be the same specimen as in the first photo of this thread?

17th Apr 2024 12:38 UTCEd Clopton 🌟 Expert

The rock-like bottom material suggests that this is "slag glass", surplus or unusable glass that was discarded from a manufacturing process. It often is poured on a floor, the ground, etc. and picks up debris where it makes contact.

For future reference, specimen photos work best when the specimen is placed on a plain, untextured white background like a sheet of paper so there is no movement and so the camera can focus on the specimen and not the background. Taking good photos of rocks is harder than it looks and may take some practice.

17th Apr 2024 23:41 UTCKevin Conroy Manager

Ed Clopton 🌟 Expert ✉️

photos work best when the specimen is placed on a plain, untextured white background like a sheet of paper

It's critical that we can see the true color(s) of the specimen, and as Ed said a good way to do this is to have a plain white background.

19th Apr 2024 02:02 UTCKatie Ragans

That black circle is adhesive that it was stuck to in showcase box he had before it came loose.

19th Apr 2024 02:03 UTCKatie Ragans

Much better indeed with the white

19th Apr 2024 02:03 UTCKatie Ragans

Few more

19th Apr 2024 02:04 UTCKatie Ragans

All angles

19th Apr 2024 02:04 UTCKatie Ragans

Hope that helps

19th Apr 2024 16:48 UTCVolker Betz 🌟 Expert

I am sorry, if the background is white, then this pictures are underexposed. It is a common fault that pictures out of the camera are ok. Optimal pictures always need post processing.

Or at least they can much improved by post processing.

20th Apr 2024 22:57 UTCKatie Ragans

Better?

20th Apr 2024 22:58 UTCKatie Ragans

This too

20th Apr 2024 22:59 UTCKatie Ragans

☺️

20th Apr 2024 22:59 UTCKatie Ragans

🙂

20th Apr 2024 23:00 UTCKatie Ragans

Much better

20th Apr 2024 23:01 UTCKatie Ragans

That black spot on bottom is glue from where it came off its showcase section it was glued to

20th Apr 2024 23:02 UTCKatie Ragans

Last one

20th Apr 2024 23:23 UTCLalith Aditya Senthil Kumar

Seems to be smokey quartz.

21st Apr 2024 09:21 UTCChristian Klein

Hi Katie

very good pictures! But this is definitely not natural material. It is some kind of glass, partically melted and partially granular, it can come from the boundary of a large crucible or was poured in liquid form onto some surface. Nothing wrong with it, just not natural.

so long

Christian

21st Apr 2024 10:49 UTCFrank Mersch

Hi,

nearly the same thoughts - perhaps a Zirconia from a skull melting process? In this case it will scratch glass easily!

Frank

Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 30, 2024 06:04:24

Go to top of page