Fossil in a conglomerate? Homepage › Forums › What Is It? › Fossil in a conglomerate? Tagged: Conglomerate, marine, mini, river bed, rock, tiny This topic has 1 reply, 2 voices, and was last updated 2 years, 5 months ago by Jim Chandler. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts July 2, 2021 at 8:12 pm #104056 Ben and LydiaParticipant Found in Australia in a river bed Exmouth. It’s super tiny but if it is a fossil it will be our first ever find! Any clue what it is? Attachments:You must be logged in to view attached files. July 2, 2021 at 9:19 pm #104060 Jim ChandlerParticipant If it’s a fossil it could be a coral. It could however be an igneous rock like pumice. Test the rock with some weak hydrochloric acid (also called Muratic acid dilute to 5 percent. If it fizzes it’s more likely to be a fossil. Also check with a museum or school. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic.