Ami Posted August 19, 2017 Share Posted August 19, 2017 Found at the beach, underwater. Tried as best I could to wash the dirt off but pieces of crystal keep falling off (you can see three small peices on the side), they seem fragile. The rock is about the size of my hand. Link to comment Share on other sites More sharing options...
ynot Posted August 19, 2017 Share Posted August 19, 2017 It looks like it could be calcite. Take the small pieces and crush them then put a drop of vinegar on it. If it fizzes then it is calcite, if it does not fizz We will go from there. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Ami Posted August 19, 2017 Author Share Posted August 19, 2017 12 minutes ago, ynot said: It looks like it could be calcite. Take the small pieces and crush them then put a drop of vinegar on it. If it fizzes then it is calcite, if it does not fizz We will go from there. Its fizzing and making small bubbles. Then it must be calcite? Thanks a lot! Link to comment Share on other sites More sharing options...
Wrangellian Posted August 19, 2017 Share Posted August 19, 2017 I figured it was either quartz or calcite.... Looks like it's calcite. I'm just amazed that you can find a chunk of rock underwater at the beach that is completely devoid of algae/seaweed... or that you can clean it off that well! Link to comment Share on other sites More sharing options...
Doctor Mud Posted August 20, 2017 Share Posted August 20, 2017 5 hours ago, Ami said: Its fizzing and making small bubbles. Then it must be calcite? Thanks a lot! Now this is what I call feedback! we have never had an actual photo of The effervescence or fizzing before. Great work guys Link to comment Share on other sites More sharing options...
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