Lapidaryforum.net
Let's Rock => Identifications of Materials => Topic started by: iamrockaholic on August 27, 2018, 04:08:07 PM
-
Hello again my new friends. I havy another "Mystery Rock" I need help with identifying. I'm thinking Owhee or Biggs Jasper. Your opinion would be greatly appreciated. Thank you all for valued opinions.
-
Not enough experience with material, but would agree with Biggs, due to the colour strength.
Nearly sure its not Owhee, but could be Deshute jasper.
-
There are a ton of Ochre to Tan Jaspers out there. I don't see any identifying patterns that I normally associate with Biggs or Deschutes. Another thing is the green on the bottom, not a color I have seen in either of those Jaspers but I normally only see the high end material and not saying that green doesn't exist in some form with them just that I have never seen it. Based on what I see I don't think it is either.
There are several locations where I have found jasper that looks like that and also has the same Green and Ochre but they are all Southern California locations.
-
Thank you very much for your input. I'm leaning towards Biggs but still not feeling confident. Thanks a bunch!!!
-
I agree with irockhound: If that is actually green along the bottom, it isn't typical for Biggs or Deschutes. I've seen hints of greenish, but nothing like that much emerald green. Still, could have been stained in storage. I suspect that green would come from copper, so a jasper or rhyolite from Arizona, east side of southern California or parts of Nevada would be possibilities. Would be worth taking a slice to see what may be inside, and whether it takes a polish.
-
What makes you think it is Biggs?
-
I would say neither of those.
Lots of areas with this kind of jasper, kind of hard to pick any one locale.
Tony
-
Thank you all for your help. I'm not yet convinced its Biggs but fro photos it appears the closest. I took another photo of the green and its definitely green. Also it has a few tiny crystal pockets.
-
One clue you have if you look at biggs and Deschuetes Jaspers besides the picture jasper lines is the overall consistancy of the jasper to be a solid tone or a gradated tone. What you don't see in those jaspers is the random (call it spotchiness) of the pattern and color that your slab displays. This is normally from a more chaotic development when the jasper was formed. Deschuetes and Biggs have those landscape pattern lines because of a much more structured and less chaotic development.
-
Oregon jasper's, All mud flows sooner our later well just agatize.
Depend on strata point to sea level depends on what happen to the formation. Calcite or Carnelian base silicates.
or opalize wood / Mud, Fossil. As for the mud flows of sediments, and fresh water basins in Biggs Oregon. Depends on the sea floor sediments rolled into the rolling hills in jasper's, along the Columbia river. Brown Biggs from Millers ranch is what is known as chocolate bar jasper.
Oregon's beach front. Richard Condon found fossilized lobsters close too the Deschutes river and brackish water. the south rim. of the Columbia river. It is in ''the Book The Two Islands.''
-
Oregon jasper's, All mud flows sooner our later well just agatize.
Depend on strata point to sea level depends on what happen to the formation. Calcite or Carnelian base silicates.
or opalize wood / Mud, Fossil. As for the mud flows of sediments, and fresh water basins in Biggs Oregon. Depends on the sea floor sediments rolled into the rolling hills in jasper's, along the Columbia river. Brown Biggs from Millers ranch is what is known as chocolate bar jasper.
Oregon's beach front. Richard Condon found fossilized lobsters close too the Deschutes river and brackish water. the south rim. of the Columbia river. It is in ''the Book The Two Islands.''
After spending a couple of weeks avidly reading tonnes of posts on this site, I've learned much, and find myself musing re the fine line that often divides agate and jasper. Here's a pic of a rock (found a couple) near Cle Elum, Wa. which based on what I've seen and read here, I'd guess is some sort of Jasper, rather than agate: [ You are not allowed to view attachments ]
-
So, I'm leaning to Ammonite/jasper https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=2ahUKEwjV1OS8xqndAhVYIDQIHReqA14QjRx6BAgBEAU&url=https%3A%2F%2Fdeskgram.org%2Fexplore%2Ftags%2Forgonenecklace&psig=AOvVaw2bDAjZ9Y60iNWCEZ0xtyax&ust=1536432180760624
-
I am leaning towards a Rhyolite
-
I am leaning towards a Rhyolite
Thank you. I was not aware of Rhyolite prior to your comment. I looked up images of Rhyolite and could certainly see similarities, although I guess I'm having a hard time getting past the visual similarities of the images I found of Ammonites. I'll definitely do some searching, and thank you for putting forth your opinion.
-
Looks like some sort of birds eye rhyolite to me.
https://www.google.com/search?q=birds+eye+rhyolite&client=firefox-b-1&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj-yqLlsqrdAhUKFnwKHZ84CbwQ_AUICigB&biw=1472&bih=731
-
Look up pictures of Mushroom Jasper < actually a Rhyolite as it is very similar to your image. Sort of the typical problem of rhyolite being called a jasper for a trade name. I should add great find too as it is always fun to cut that type of material with so many patterns in it.
-
Looks like some sort of birds eye rhyolite to me.
https://www.google.com/search?q=birds+eye+rhyolite&client=firefox-b-1&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj-yqLlsqrdAhUKFnwKHZ84CbwQ_AUICigB&biw=1472&bih=731
Yes, it most certainly does. Thank you.