1DanS Posted September 6, 2013 Report Share Posted September 6, 2013 1" amber slag. It has bands/threads of white inside and bands/threads of something that glistens when looked at in the sun or bright light. At first I thought it may be lutz, but why would they put lutz in such a dark based marble? Then I looked some amber micas, where the mica inside was pretty much the same color. But I don't think I have seen bands/threads of mica in a marble before(?). Your thoughts please. thanks Link to comment Share on other sites More sharing options...
Steph Posted September 6, 2013 Report Share Posted September 6, 2013 Since it is diffuse, my guess would be that it was an accidental effect. Link to comment Share on other sites More sharing options...
lstmmrbls Posted September 7, 2013 Report Share Posted September 7, 2013 Looks more like the globs that some times form along some of the color strings in European machine made swirls. They also can get weird fractures on the globs that appear as mica or aventurine? Link to comment Share on other sites More sharing options...
winnie Posted September 7, 2013 Report Share Posted September 7, 2013 Hi Dan,Think Galen is right with the fractures,Here's a German slag,it has glittering inside,it looks just like mica. I think it has some kind of inner fractures,just like yours. Link to comment Share on other sites More sharing options...
Steph Posted September 7, 2013 Report Share Posted September 7, 2013 Are we looking at the same features on Dan's marble? I'm looking at what seems like a mist of very fine glitter. Link to comment Share on other sites More sharing options...
1DanS Posted September 7, 2013 Author Report Share Posted September 7, 2013 Well, I don't know what it is, but I do know what it isn't and it is not fractures. It is an old german handmade. However, thank you very much for the input. thanks Link to comment Share on other sites More sharing options...
lstmmrbls Posted September 7, 2013 Report Share Posted September 7, 2013 I was looking at the middle pic at a looping line a little below center running left to right across the marble. Looked like small roundish fractures extending downward off the color(white?) line Link to comment Share on other sites More sharing options...
Steph Posted September 7, 2013 Report Share Posted September 7, 2013 Okay, I see the description now. We're supposed to be looking at "bands/threads". All I saw was a dusting of sparkle over the top of the middle pic. *oops* Link to comment Share on other sites More sharing options...
stacyw Posted September 8, 2013 Report Share Posted September 8, 2013 I think the reflection from the Alligator(?) surface on which the marble was photographed is distorting the picture. Maybe a different image and/or a backlit photo would help. Link to comment Share on other sites More sharing options...
I'llhavethat1 Posted September 9, 2013 Report Share Posted September 9, 2013 Nice marble, and 1" too? I think I see what you mean and probably a chemistry thing (non-intentional) but hard to tell unless it's in-hand. Can't say I've seen mica show up unexpected, but aventurine does show up once in a while in odd places. Link to comment Share on other sites More sharing options...
1DanS Posted September 16, 2013 Author Report Share Posted September 16, 2013 I tried to backlight it, sorry for the pic. The darker bands are the ones that glitter. thanks Link to comment Share on other sites More sharing options...
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