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Post by rockjunquie on Mar 26, 2017 8:35:22 GMT -5
Here's a piece with spectrolite that I sold. Does the black look similar?
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Post by toiv0 on Mar 26, 2017 9:39:17 GMT -5
Well with visions of chatoyant sugelite dancing in my head I think labradorite is probably the ticket. I am going to pull the stone out all the way, it will only take a minute, probably scratch it with everything I got. Thanks to all!
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Post by 1dave on Mar 26, 2017 9:55:53 GMT -5
@dave1, do you know what this stone is? My Guess is something close to labradorite. Other feldspars often grow in alternating sheets which can give a schiller effect. labradorite Orthoclase with Ilmenite and Hematite
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Toiv0
starting to spend too much on rocks
Member since March 2017
Posts: 100
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Post by Toiv0 on Mar 26, 2017 10:14:44 GMT -5
@dave1, do you know what this stone is? My Guess is something close to labradorite. Other feldspars often grow in alternating sheets which can give a schiller effect. labradorite Orthoclase with Ilmenite and Hematite Yep going with labradorite. Got it out and sugelite scratched it. Got the knife out and got a good scratch with it.
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Toiv0
starting to spend too much on rocks
Member since March 2017
Posts: 100
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Post by Toiv0 on Mar 26, 2017 10:35:18 GMT -5
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Post by Bluesky78987 on Mar 26, 2017 11:03:20 GMT -5
Maybe Purpurite? The pictures google brings up look a little different, like stichtite content or something, but I cut one a while back that ended up looking kind of about like yours. In fact, the purple got so dark I thought it vanished when I polished it.
The purpurite I got from a reputable and beloved seller on ebay (I just can't remember his name at the moment, just woke up. It's coming to me - his real name is Gary . . . now what the heck is his store name) looked almost exactly like your cab.
Edited to add: that thing doesn't look anything like labradorite.
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Post by toiv0 on Mar 26, 2017 11:30:36 GMT -5
Thanks Bluesky78987 will have to pull it apart again and see if it streaks red or white.
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Post by Bluesky78987 on Mar 26, 2017 11:37:05 GMT -5
I don't know now. I'm thinking maybe yours and mine are the same thing, but not purpurite. I tried to find the remaining rough but it must be in one of the "Misc Rough" boxes, argh.
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Post by Bluesky78987 on Mar 26, 2017 11:39:20 GMT -5
If you google "purpurite rough" the pics look more like what I had.
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Post by toiv0 on Mar 26, 2017 12:31:04 GMT -5
Well it streaked white not red so must be labradorite. I don't think I will pull it apart again...haha Thanks to everyone
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Post by rockjunquie on Mar 26, 2017 13:55:06 GMT -5
1dave - Is this stone for real??? What a stunner!
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Post by 1dave on Mar 26, 2017 14:07:39 GMT -5
1dave - Is this stone for real??? What a stunner! It is! I found it on the web several years ago.
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metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
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Post by metalsmith on Mar 26, 2017 14:41:49 GMT -5
I made this years ago ... I know this wasn't the question, but btw, that is super tidy silver-smithing you have there. I hope it has survived the tests ok.
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Post by toiv0 on Mar 26, 2017 15:37:53 GMT -5
I made this years ago ... I know this wasn't the question, but btw, that is super tidy silver-smithing you have there. I hope it has survived the tests ok. Thanks, I think I was a little more careful when I was younger.
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Post by 1dave on Mar 26, 2017 21:51:47 GMT -5
Not so sure now. I don't see the parallel crystal structure normal to feldspars.
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metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
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Post by metalsmith on Mar 27, 2017 0:37:21 GMT -5
FWIW, purely on appearances, I'm also going with Charoite.
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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 Mar 27, 2017 11:04:37 GMT -5
I saw this material making the rounds a few months ago on FB. forgot the name of it. apparently it has to be treated with acid after cabbing to bring out the chatoyancy.
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Post by rockjunquie on Mar 27, 2017 11:11:48 GMT -5
toiv0 How long ago did you cab this? Maybe it is some of the new stuff Don is talking about. It really doesn't look all that much like lab- close but no cookie. More like spectrolite than anything. Or, some sublime charoite. I love a mystery.
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Post by toiv0 on Mar 27, 2017 12:02:54 GMT -5
A geologist friend just looked at it and he said not labradorite. It was set about 4 years ago.
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Post by toiv0 on Mar 27, 2017 12:04:55 GMT -5
I think the material soaked in acid is purpurite or another related stone. Edit: The other related stone is heterosite when its combined with iron. heres an article on washing purpurite with acid. www.mindat.org/forum.php?read,6,311404,311527
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