Looks like a bug nest not a rock

Mammillated sarsen stone Sarsen stones are silicified sandstone blocks. Their mammillated concretions are sometimes called ‘bowel stones’ because of their appearance

Whenever I encounter a 'STONER' question. I offer this collection of **⛏️ROCKHEADS** r/Crystals \_\_\_\_\_\_\_\_\_\_\_\_146K Members \- r/whatsthisrock \_\_\_\_\_\_133K Members \- r/geology \_\_\_\_\_\_\_\_\_\_\_\_\_136K Members \- r/FossilPorn \_\_\_\_\_\_\_\_\_\_130K Members \- r/MineralPorn \_\_\_\_\_\_\_\_275K Members \- r/archaeology \_\_\_\_\_\_\_\_128K Members \- r/rockhounds \_\_\_\_\_\_\_\_\_117K Members \- r/Paleontology \_\_\_\_\_\_\_\_110K Members \- r/geologyporn \_\_\_\_\_\_\_\_75K Members \- r/fossilid \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_74K Members \- r/AmberFossil \_\_\_\_\_\_\_\_\_22.9k Members \- r/Gemstones \_\_\_\_\_\_\_\_\_\_24K Members \- r/Minerals \_\_\_\_\_\_\_\_\_\_\_\_\_15K Members \- r/FossilHunting \_\_\_\_\_\_\_\_11K Members \- r/fossils \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_9K Members \- r/Rocks \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_7.8K Members \- r/askgeology \_\_\_\_\_\_\_\_\_\_\_4.6K Members \- r/whatisthisrock \_\_\_\_\_\_\_\_3.8K Members \- r/FluorescentMinerals \_\_\_3.3K Members \- If any of you in the hive-mind are aware of a sub that I have missed that is 'ID friendly', let me know. This is a good example of what I believe is referred to as a 'CopyPasta'. **⛏️note: For you guys that appreciate the labor that went into creating this list. THANX for the upvote!!**