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Help with this one as well..
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alfredo
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PostPosted: Feb 21, 2018 16:42    Post subject: Re: Help with this one as well..  

" this includes small pieces from an old rock collection."

I tend to agree with Bob here. Based on the shape and surface texture, I think someone lost an old collection of tumbled stones, either accidentally or deliberately as part of some mystical ritual. (I don't do such things with my rocks, but you'd be astonished at the stories I hear about what other people do with their stones!)
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Joshua b.




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PostPosted: Feb 21, 2018 20:30    Post subject: Re: Help with this one as well..  

The bands look to be small crystal and when light is emitted into the fracture it travels thru them and will exit other side only thru the lightning like cracks thru it.. Is that normal for a stone.. And why is the hardness so tough.. Seems a knife could scratch a smoothglossy surface... It's not smooth at cracks though you can feel the crystally texture
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Riccardo Modanesi




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PostPosted: Feb 22, 2018 03:42    Post subject: Re: Help with this one as well.. Opal?  

kushmeja wrote:
This is almost certainly quartz var. amethyst (aka purple quartz)


Hi to everybody! Why are you excluding the possibility of garnet (almandine, pyrope...)?
Greetings from Italy by Riccardo.

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Hi! I'm a collector of minerals since 1973 and a gemmologist. On Summer I always visit mines and quarries all over Europe looking for minerals! Ok, there is time to tell you much much more! Greetings from Italy by Riccardo.
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Joshua b.




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PostPosted: Feb 22, 2018 04:03    Post subject: Re: Help with this one as well..  

I believe this is a sort of almandine


IMG_20180220_151257.jpg
 Mineral: Almandine
 Dimensions: 3.81 cm
 Description:
 Viewed:  865 Time(s)

IMG_20180220_151257.jpg


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Joshua b.




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PostPosted: Feb 22, 2018 22:31    Post subject: Re: Help with this one as well..  

Where can i get my minerals tested at.. In east Texas or eastern Oklahoma preferably
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Matt_Zukowski
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PostPosted: Feb 22, 2018 23:08    Post subject: Re: Help with this one as well..  

Joshua:

You should know that we focus more on mineral specimens than some of the rocks you have been showing us. (We don't discuss cut or polished stones, and we are not crazy about random rocks that don't show any crystal faces.) But we do want to be helpful to you and we are always willing to help anyone who is as crazy about minerals as we are. Reading your comments I suspect that you have not read "What is this? / Where is it from?" because you don't seem to be doing the testing outlined in this post. If I am wrong, and you have questions about how to test, please let us know.

Not to say that you fit into this category, but there have been others who have inundated us with random rock questions. All these people give us is a poorly-focused picture, and they don't seem to want to help us help them. We have stopped helping these people because it just gets too frustrating. The first step you could do to help us would be to read about tests you can do to characterize your specimen before you ask us for our opinion. Our opinions to you would be SO much better if you do some testing and give us the results with your query.

As far as seeking local help, I would go to a local geology department and ask around for some help. If this is not available, a local rock club or local mineral shops are also good places to go, show people rocks, and ask questions.

Good luck.
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