And you are quite right about the speculation. Hence the use of the term "arm-waving" Yes, I do yearn for a thin-section.
I'm wondering why I am catching heat for other's reactions to Robert Clark in this thread. I thought I was pretty gentle with Robert Clark who has a sharp eye and the enthusiasm to pour over many raw images. He frequently points out features I've not seen. And articles, too. I don't always agree with his analysis...but that's okay with me. Please see my post above for sedimentary speculations and acknowledgement of a potential mud fight.
I've taught hundreds of students the art/science of rock/mineral identification at all collegate levels. It's difficult in real life with a table full of samples. It's much more difficult here with only pictures for samples. And it is really tough with grayscale MI images. And that powdery RAT'd surface frustrates me...I really want to spit on that exposure to get a better view.
Space/Science » in reply to see andesite image
nice picture, thanks
The whole thread (59 posts)
- Smooth inclusions in Wishstone rock.
- Squires on Wishstone
- UPDATE: Wishstone Rich in Phosphorus
- re: Smooth inclusions in Wishstone rock.
- Non-crystalline material?
- porphyritic basalt