meviva
Cave Dweller 
Member since July 2013
Posts: 1,474 
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Post by meviva on Apr 20, 2017 23:35:41 GMT -5
It's been a long time since I slabbed anything. I wasn't sure where to start so I just grabbed something out of bucket. I don't know what it is, but I really like it. Any ideas? Andrea    |
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Post by aDave on Apr 21, 2017 1:26:54 GMT -5
Tree (dendritic) agate? Someone recently posted an image of something similar (referred to it as tree agate), and a Google image search produces similar results.
Dave
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Post by deb193redux on Apr 21, 2017 14:00:34 GMT -5
I think a dendritic opalite I cut some recently, not quite as orange,  |
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,504
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Post by Sabre52 on Apr 21, 2017 17:33:13 GMT -5
Bertrandite can come in those colors in addition to the purple and that's the way I'd lean. There's also a rose form of amethyst sage that looks like that. The Bertrandite is more opalized and the other more agatized. The" Tree agate" refers to the black dendrites included in the material, Dendritic means having branching treelike inclusions. Many agate and jasper types have dendrites..Mel
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Post by aDave on Apr 21, 2017 17:50:22 GMT -5
Thanks Mel. That's why I put a question mark at end of my "guess." In no way am I close to knowing anything...and I can prove it. Gotta keep looking at these threads and pictures and trying to soak in what I can.  Dave |
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meviva
Cave Dweller
Member since July 2013
Posts: 1,474
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Post by meviva on Apr 21, 2017 22:49:54 GMT -5
Thanks guys. When I bought the piece I thought it looked like it could be amethyst sage but there was no purple. I didn't know there was a rose version.....cool. I'll look up Bertrandite and compare.
Andrea
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Post by Bluesky78987 on Apr 22, 2017 9:10:48 GMT -5
Can you post a picture of the rough side of the stone? I was thinking Tiffany too and it has a pretty distinctive rough look.
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meviva
Cave Dweller
Member since July 2013
Posts: 1,474
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Post by meviva on Apr 22, 2017 10:55:43 GMT -5
Can you post a picture of the rough side of the stone? I was thinking Tiffany too and it has a pretty distinctive rough look. Here's a couple pics of the rough side and one of the cut side without oil.    |
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Post by Bluesky78987 on Apr 22, 2017 11:04:35 GMT -5
That does look like Tiffany, but with unusually strong dendrites and unusually little healed fractures/brecciation. I'm about 50/50 between Tiffany and dendritic opal of some sort.
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,504
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Post by Sabre52 on Apr 22, 2017 11:48:43 GMT -5
Betrandite and Tiffany Stone are synonyms. Another incidence of common name confusion. I thought Betrandite too but am leaning more towards Rose ammey sage after seeing that last rough cut pic....Mel
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Post by toiv0 on Apr 22, 2017 15:03:37 GMT -5
I'm with the rose sage. Not as dendritic but sure looks like it.   |
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Post by toiv0 on Apr 22, 2017 16:46:13 GMT -5
This material is amythst sage from Tony. It runs the color Gambit from tans, translucent amythst, to the rose color. Nice material from Tony! catmandewe |
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Post by aDave on Apr 22, 2017 16:48:06 GMT -5
I thought Betrandite too but am leaning more towards Rose ammey sage after seeing that last rough cut pic....Mel Well, I actually learned something in this thread. I happened to go to our club's show today, and I spent some time looking at the different display cases. As it happens, and surely as a result of this thread, a specimen slab happened to catch my attention. Without this thread it would have simply been another piece of rock. The slab, which is the spitting image of the subject of this thread was labeled amethyst sage. I wasn't smart enough to take a picture, but coloration and dendritic features were identical. If the show was last weekend, I'd have probably walked right on by. Not so today. Good call Mel. Dave |
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Post by toiv0 on Apr 22, 2017 16:54:40 GMT -5
Here is a heel off an amythst sage I just cut.  |
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Post by catmandewe on Apr 27, 2017 12:02:21 GMT -5
This material is amythst sage from Tony. It runs the color Gambit from tans, translucent amythst, to the rose color. Nice material from Tony! catmandeweThanks! It sure looks like Amethyst sage to me, especially with the rind picture. The name denotes that there is purple in every piece but actually only about 5-10% of it has any purple, but there sure are lots of other colors in it. One of my favorite things to cut! Tony |
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Don
Cave Dweller
He wants you too, Malachi.
Member since December 2009
Posts: 2,616
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Post by Don on Apr 27, 2017 12:05:25 GMT -5
do a hardness test. an opalite will be must softer than a agate/jasper
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