Jessicamae3
Jr. Member
Out metal detecting a site that has an inactive small sinkhole with my young son. He doesn't last long as the "treasure" doesn't come quick enough for him and his need for movement and activity. It is not long before he is climbing on sand hills and sliding down them. Of course I join him and search for treasure above ground, minus sand hill sliding! This spot has really satisfied my rock hounding needs here in Florida! Curiosity had me picking up a few rocks and bringing them home to research; I'm a First grade teacher and love to learn new things. Funny how I had no idea what they were nor did I take much care when throwing them in my pouch as I found them. A little research has kept my mind busy as my summer goes by.
I need confirmation or education on what I have found in the small area I was skimming sand off with my hand shovel. Can you help?
1. I think may be scoria?
2. Possibly another type of scoria?
3. Is this pumice? Or pyroclastic?
4. Is this pillow lava, and if so does it have a specific name?
This rock floats.
I also believe inside this bucket of rocks is some Tuff with pyroclast.
5. Is this opaline silica? A white welded tuff with fossils?
6. And this, I can't much figure out. I would describe the rock as light for size. I see where I may have chipped it as I dumped it out on the ground and it was white as snow on a few spots. It looks like a "bone".
7. This is similar in nature to #6
All of these finds surprised me due to their volcanic nature. Should I not be surprised at volcanic deposits in Florida?
Then there was some more.
A shell fossil.
Lastly, I found a large chunk of sedimentary rock. I have not messed with it much other than tossing it off the sand pile and watching this stone break off from it. I want to break it up and see what other rocks or fossils are in this. So curious.
Well thanks for taking the time to look and if you wouldn't mind confirming, clarifying, or leading me to a source for answers, I'd greatly appreciate it!
Jessica
Hoping the pictures will post ok, they were taken with my iPad.
I need confirmation or education on what I have found in the small area I was skimming sand off with my hand shovel. Can you help?
1. I think may be scoria?
2. Possibly another type of scoria?
3. Is this pumice? Or pyroclastic?
4. Is this pillow lava, and if so does it have a specific name?
This rock floats.
I also believe inside this bucket of rocks is some Tuff with pyroclast.
5. Is this opaline silica? A white welded tuff with fossils?
6. And this, I can't much figure out. I would describe the rock as light for size. I see where I may have chipped it as I dumped it out on the ground and it was white as snow on a few spots. It looks like a "bone".
7. This is similar in nature to #6
All of these finds surprised me due to their volcanic nature. Should I not be surprised at volcanic deposits in Florida?
Then there was some more.
A shell fossil.
Lastly, I found a large chunk of sedimentary rock. I have not messed with it much other than tossing it off the sand pile and watching this stone break off from it. I want to break it up and see what other rocks or fossils are in this. So curious.
Well thanks for taking the time to look and if you wouldn't mind confirming, clarifying, or leading me to a source for answers, I'd greatly appreciate it!
Jessica
Hoping the pictures will post ok, they were taken with my iPad.
