demihuman
starting to spend too much on rocks
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Member since May 2024
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Post by demihuman on Jun 17, 2024 20:54:34 GMT -5
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chris1956
fully equipped rock polisher
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Member since July 2022
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Post by chris1956 on Jun 17, 2024 21:23:06 GMT -5
Did it fall apart when you cut the rocks? If so here is a link to a somewhat simple method of stabilizing soft material. I don't know how it would work on the cracked material it looks like you have.
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demihuman
starting to spend too much on rocks
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Member since May 2024
Posts: 115
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Post by demihuman on Jun 17, 2024 22:22:55 GMT -5
Oh that’s cool! Some of it crumbled when I cut it. I am thinking that I need to hold out for better rocks to bring home.
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Post by rockjunquie on Jun 18, 2024 6:56:45 GMT -5
Looks like something vegasjames might pick up. I don't think it's brecciated jasper. Maybe James will know.
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tribeunited
fully equipped rock polisher
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Post by tribeunited on Jun 19, 2024 16:27:22 GMT -5
I'm replying to this so his thread moves up to the top. I posted too many yesterday and buried this request, he still needs an ID. Sorry demihuman!
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khara
fully equipped rock polisher
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Member since September 2022
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Post by khara on Jun 19, 2024 16:43:01 GMT -5
I don’t know the ID but I also wouldn’t call it brecciated. As for cabbing it, when I have a piece like this that is obviously filled with fractures and I want to avoid wasting my time, I’ll actually intentionally drop the slab from a foot or so at least above a hard table or the garage floor. This way it’ll fracture where it’s going to and I can attempt a cab in the pieces that are left. I don’t know if this method ends up adding fractures that maybe weren’t already there. But I figure if it’s weak it’s better to find out early on.
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Post by vegasjames on Jun 19, 2024 18:21:17 GMT -5
Looks like something vegasjames might pick up. I don't think it's brecciated jasper. Maybe James will know. From the rounding of the clasts, I would say it is a conglomerate instead of a breccia.
From the crystal structure on the outside, I doubt it is a jasper either. With the cubic structure and base color, I would say it is very likely dolomite (calcium magnesium carbonate), which is very common at a lot of our mines around here. Sometimes it is stained by other minerals such as iron making it red, brown or yellow, or by copper giving it a green or blue color.
The brown in stone is limonite, which is a general term for a mix of iron oxides and hydroxides, and not an actual mineral. It is also very common at a lot of mines and frequently found with both dolomite and copper minerals.
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