Rikki Posted June 4, 2022 Share Posted June 4, 2022 Link to comment Share on other sites More sharing options...
GotAU? Posted June 5, 2022 Share Posted June 5, 2022 If you collected it in Central California, it looks like radiolarian chert from the Fransican formation. Link to comment Share on other sites More sharing options...
Redz Posted June 5, 2022 Share Posted June 5, 2022 Looks like a piece of quartz Link to comment Share on other sites More sharing options...
GotAU? Posted June 5, 2022 Share Posted June 5, 2022 10 hours ago, Redz said: Looks like a piece of quartz @Rikki not a diamond, sapphire or any other type of crystal- but keep looking! Also get this guide to minerals and rocks, we used it in my beginning geology class and it is really helpful for identifying rock and minerals the field: Simon & Schuster's Guide to Rocks & Minerals https://a.co/d/36PyOWu 4 Link to comment Share on other sites More sharing options...
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