Leaverite

Leaverite is a slang term used by geologists, mineralogists, archaeologists, and amateur rock collectors to identify a specimen in the field that may look interesting but is actually not. Rocks identified as such are generally left where they were found, as there is no reason to attempt to remove them. The term leaverite derives from the phrase "leave 'er right there".

There are several kinds of leaverites:

1. Man-made features
2. Unrocks; objects that may initially appear to be geologic in origin.
3. fossils and pseudofossils