Here's a sneak peek of /r/whatsthisrock using the top posts of the year!
#1: Found on a riverbank. I’ve never seen anything like it. I’m thinking agate, but why is it so scaly? I made a necklace out of this beauty. | 96 comments
#2: Very important blue rock identification (a lighthearted, reposted search for your day) | 49 comments
#3: Central Oregon find | 132 comments
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