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Rusty Neon  Rusty Neon is offline
Join Date: 12 Mar 2003
Location: Land of Snow and Ice (O Canada)
Posts: 4,844
Rusty Neon 

ruby ... Thanks for all the helpful information. It's no wonder that people use many of the various terms synonymously, in view of the overlap or complexity of the terminology. I can see how even geologists could slip up.

I'm surprised to learn from your post that even basic terms like "stone" and "rock" have different nuances from each other, "stone" being the most general term there is. That really shocked me. I would have thought "rock" to be the more general term. I guess Fred Flintstone's hometown should really be called "Bedstone".

Where does "gemstone" fit into all this? When is a stone a "gemstone"? Can every stone be made into a "gem"?
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