r/whatsthisrock is a subreddit with 699k members. The community frequently discusses rock, found, found in, identify, and what, and the most common flair used is request, identified, and identified - most likely potassium feldspar in augen gneiss.
Dedicated to identifying mysterious rocks and minerals.
Popular Topics in r/whatsthisrock
#1
Rock
248 posts
#2
Found
211 posts
#3
Found In
64 posts
#4
Identify
55 posts
#5
What
27 posts
#6
What Is
23 posts
#7
Stone
23 posts
#8
Beach
22 posts
#9
Type
21 posts
#10
Find
19 posts
Flair Used in r/whatsthisrock
#1
REQUEST
: "Strange rock or something macabre?"
88 posts
#2
IDENTIFIED
: "Spanish Springs, Nevada"
7 posts
#3
IDENTIFIED - most likely potassium feldspar in augen gneiss
: "What is the pink rock within the gneiss?"
1 post
Member Growth in r/whatsthisrock
Yearly
+95k members(15.8%)
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Last updated: October 15, 2026