geology

This may be silly but I have no idea what causes this and it is just so odd. Some will have weird looking pieces in it or round holes where pieces are gone. It's all wavy and there is a lot of this red in most. I assume from the clay. I'm just curious. If anyone can offer ideas, I would love...

I think its some kind of polybasite or silver minerals or lead. It is very heavy this one rock weighs 20 lbs. I'm a novice in geology. Please help me identify this. If anyone has a tip please any information is so helpful.

I found this rock/artifact, no idea what to make of it. :icon_scratch: Any help identifying it would be greatly appreciated. A little bit about it: It looks like a rock, the checkered pattern looks like its metal plated, the blue material/mineral reacts to UV light. The survace has a V and is...

Each picture is of a different Rock specimen I found in my backyard in an ancient Creek bed.

So excited I had to sign up and post. I was hiking near Sage/Vail Lake today, basically looking for rocks and tailings piles. I stumbled across a nice pile, then I discovered that it had a deep horizontal mine, so far that I couldn't see how far back it goes. It looked like it may have had a...

[B]Found while digging in my yard in Southern California[/B]

I'm just curious if anyone could explain, geologically, some of these rock formations. Just a curiosity. I understand some very basic fundamentals, but everything I know is piecemeal from a few years of googles research. I understand sedimentary rock is a cumulation of years of compression...

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:hello2: I would like to find a good geology book. I have tons of good fossil books. But I would like to learn more about geology and identification of rocks/minerals/gems. Texas is where I basically look. I do not use a metal detector (as of yet). Any recommendations would be appreciated if you...