Found in Argyll & Bute, Scotland. Rounded rock 15cm x 10cm - Granodiorite?

Where was there any teaching I had already said I was wrong. Telling Some that knows they wers wrong that they were isnt teaching. Where was its this not this if that was teaching. Also I was tying to.point out a pattern similarity. I repeatedly said I was was pretty sure or sure it wasn't obsidion. Over in plant ID if someone is wrong I dont juat say nope and down vote. I usualy say no and this is where your makeing the mistake. Also rarely do I down vote a person for making an effort.. Especialy if there is an effort. After all that if the person responds why they said what they did, I'll listen to there side. Again a teachable moment. Thats how you tech and learn. Again like I pointed out.I think in my second post that I even said mistakes are how you learn. Yes there were tons of opportunities for things to be learned. None of them were taken advantage of. At this point its also not just a lost teachable moment,its descorageing people to post on a learning sub. Regardless at this point I've used the block button and will think 2x before giving my input in this learning sub.

/r/whatsthisrock Thread Parent Link - i.redd.it