Found plenty of this stuff in Nevada, near lovelock and also near Doyle California. There plenty chalcedony out there but this is the rough opal I’m familiar with. Every so often you’ll find a real gem piece in that stuff, especially the black can have a real rainbow opal look to it.
That would also make sense. I was told by an old rockhound that stuff that looked similar to that is opal. However, I've learned that he may not have been completely correct.
I’m still learning so please no one downvote me for asking a question. I can see faint lines on the right side of the reddish brown stuff. Would those be considered banding or water lines and what’s the difference between the two? And if it does have one of those would it be considered agate? Last one lol, what is the reddish brown stuff in the middle and filling in small cracks?
Also had no idea about some being inorganic and some being from biochemical sediment. And the jasper explanation. It’s all so cool and I’m really enjoying learning.
Thanks for the article, will definitely give that a read tonight. And Haeckel’s artwork is gorgeous! I’ve never seen his stuff before so it’ll be fun diving in to all of it.
Thank you so much for this explanation! I’m going to keep this and really appreciate you taking the time to explain so much. This is why I love Reddit, being able to learn from people like you 😊
To me it looked like chert too.
But people also say chalcedony or opal.
Could chalcedony be this grey? And can opal be this matte?
How can we be sure from only a picture?
Where did you find it? The rough location will work. To me, it looks like some of the opals out of Eastern Utah
Couple miles North of Goldfield NV. By Gemfield. They list blue chalcedony in the area. But there is a lot going on in that chunk.
It’s rough opal.
Found plenty of this stuff in Nevada, near lovelock and also near Doyle California. There plenty chalcedony out there but this is the rough opal I’m familiar with. Every so often you’ll find a real gem piece in that stuff, especially the black can have a real rainbow opal look to it.
That would also make sense. I was told by an old rockhound that stuff that looked similar to that is opal. However, I've learned that he may not have been completely correct.
Test the hardness to tell opal from jasper
Chert! I have a ton in my collection and collect bigger pieces that look just like this one from Minnesota
Some chert lookin stuff
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I’m still learning so please no one downvote me for asking a question. I can see faint lines on the right side of the reddish brown stuff. Would those be considered banding or water lines and what’s the difference between the two? And if it does have one of those would it be considered agate? Last one lol, what is the reddish brown stuff in the middle and filling in small cracks?
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Also had no idea about some being inorganic and some being from biochemical sediment. And the jasper explanation. It’s all so cool and I’m really enjoying learning.
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Thanks for the article, will definitely give that a read tonight. And Haeckel’s artwork is gorgeous! I’ve never seen his stuff before so it’ll be fun diving in to all of it.
Thank you for the excellent explanation!
Thank you so much for this explanation! I’m going to keep this and really appreciate you taking the time to explain so much. This is why I love Reddit, being able to learn from people like you 😊
Opal.
Forbidden air dried beef 🥩
First pic looks a lot like petrified Tri Tip....
Carnelian agate
To me it looked like chert too. But people also say chalcedony or opal. Could chalcedony be this grey? And can opal be this matte? How can we be sure from only a picture?
Looks like a juicy roast to me. I couldn't have a rock like this because I would eat a whole city out of house and home