moodorf Posted July 10 Share Posted July 10 I know this isn't a fossil or some sort of exotic rock, but I can't identify it. It was found on a riverbank. I couldn't get a good answer from the "what's this rock?" reddit site. I only got one answer that told me it was a trachyte which doesn't make sense to me since I'm nowhere near a volcano. It's slightly magnetic and very heavy (24lbs) Link to comment Share on other sites More sharing options...
Coco Posted July 10 Share Posted July 10 The place of discovery is important for any attempt at identification. Indeed, it makes it possible to determine a stratigraphic level and to know the possible fossils when one suspects that the demand may concern them, but also to know more about its environment, and to deduce for example if it is a igneous medium, sedimentary etc... That’s just a rock in its broadest sense. I can’t say any more from that picture. If it sparkles by putting a little white vinegar on it will be deduced that it contains limestone (and it will be necessary to rinse). We have some specialists who could answer you, wait for their opinion. Coco 1 ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Pareidolia : here Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
Fossildude19 Posted July 10 Share Posted July 10 @ynot Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
ynot Posted July 10 Share Posted July 10 This looks like a plutonic igneous rock. Similar to granitic rock, it has some crystals forming when it cooled rapidly Do not recall the nomenclature for this type rock .. 1 Link to comment Share on other sites More sharing options...
moodorf Posted July 21 Author Share Posted July 21 Ah, ok. I figured it wasn't some sort of exotic rock/mineral, I just picked it up because it looked cool. Time to put it in a garden haha. Link to comment Share on other sites More sharing options...
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