docharber
has rocks in the head
Member since October 2008
Posts: 716
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Post by docharber on Jan 31, 2009 22:54:33 GMT -5
I was sorting through some bloodstone rough the other day and one piece definitely didn't belong. It is a tennis ball size chunk of what looks like darker pea-green obsidian. It has the usual pronounced conchoidal fracture, glassy sheen on broken surfaces, uinlike the bloodstone, which is more a waxy luster, and may have tiny flecks of white like pumice in it, just barely visible. The color is fairly homogenous. ANybody ever seen this stuff?? I'd post a pic, but my digital camera is not cooperating and my scanner doesn't show color too well.
Mark H.
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Jan 31, 2009 23:58:24 GMT -5
You can get green obsidian from Davis Creek.......umm cant remember if its in California or Oregon. bobby1 has posted some beautiful green obsidian.
Shannon
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Post by johnjsgems on Feb 2, 2009 9:08:50 GMT -5
I've seen green sheen obsidian that looks green when properly oriented to light (just like rainbow or other sheen types). There were posts on this site on green slag glass that were green no matter how they were oriented. Obsidian is volcanic glass so very similar to slag glass.
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Post by Jack, lapidaryrough on Feb 2, 2009 11:17:06 GMT -5
Lassen Creek Ca. Hwy, 395 south of Oregon, The Material runs blue then green to red from top of wall to the lower section, Of the formation. Some very nice Pin-Fire come`s from the top in the Electra Blue area.  By lapidary, shot with Canon EOS DIGITAL REBEL at 2008-07-07  By lapidary, shot with Canon EOS DIGITAL REBEL at 2008-07-13  By lapidary, shot with Canon EOS DIGITAL REBEL at 2008-07-13  By lapidary, shot with Canon EOS DIGITAL REBEL at 2008-07-30  By lapidary, shot with Canon EOS DIGITAL REBEL at 2008-07-04 The above photos are Lassen Cr. Ca.  By lapidary, shot with Canon EOS DIGITAL REBEL at 2008-07-04  By lapidary, shot with Canon EOS DIGITAL REBEL at 2008-07-07 this is from Mexico City. |
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docharber
has rocks in the head
Member since October 2008
Posts: 716
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Post by docharber on Feb 2, 2009 16:04:06 GMT -5
Beautiful stuff! My little piece ihas very little flow pattern and is pretty much a solid color of medium moss/pea green (no brpown or olive tones, much). Geez, I hate living in Florida. Nothing but sand, swamps, inaccessible caves and fossils (and those are hard to collect -I don't even know where to look locally). Guess I'll just have to keep importing stuff from all of you...
Mark H.
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Post by Jack, lapidaryrough on Feb 2, 2009 16:08:18 GMT -5
Forgot Gator Teeth. Mark H.
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Post by akansan on Feb 2, 2009 17:00:38 GMT -5
Doc - sounds like you have slag glass rather than obsidian. Slag glass would have some flow patterns, but most importantly, it would be green rather than green when sliced/tilted correctly.
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agatemaggot
Cave Dweller 
Member since August 2006
Posts: 2,195
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Post by agatemaggot on Feb 2, 2009 18:07:10 GMT -5
Sounds like green Obsidian to me, I believe that the Green material comes from the area around Burns Oregon. The mine was / is owned by Craig Ratzat. He has an on line store catering to the flint knapping crowd. He has many types of stone and also carries a material called ( Cherry Quartz ) which is made in China. I have some for knapping but it would also make some really neat cabs ! Clear with Cherry colored patterns in it . Use Green obsidian mine as a search .
Harley
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Post by bobby1 on Feb 2, 2009 21:15:00 GMT -5
Here is a piece of Green Obsidian that came from a 25lb piece from Davis Creek. The piece has no transparency and virtually no translucencey. This is what the outside looks like.  Here is what the other side looks like. It is actually Rainbow Obsidian but the rainbow layers are all green.  Here is a cab from it. Bob  |
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Post by NatureNut on Feb 2, 2009 21:16:42 GMT -5
OOooooh, it looks like The Emerald City!
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docharber
has rocks in the head
Member since October 2008
Posts: 716
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Post by docharber on Feb 2, 2009 21:25:03 GMT -5
It looks a lot like the chunk bobby1 is holding- I don't know what's inside, but I'm going to find out! I wish I could get pics to post. The material has black inclusions and one side is crusted with a thyolite-like material. i thought it might be glass, too, but the inclusions didn't make that likely (I forgot to mention the black pepperring in the material, and some larger spotys). I checked out the web sites and there seems to be a lot of couyterfeit green obsidian out there. I wouldn't risk buying this stuff on eBay now. Thanks for the great pics and I'll let you know what I find when I saw it.
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