Yooperlite Glow Rock polished into cabochon!

Here’s a huge rock that we found in a... - Yorkshire Fossils

Here’s an ammonite rock that we found in a shale slab and opened up on the beach🏝🌊 Inside, a stunning Dactylioceras tenuicostatum ammonite from the Jurassic 😍🦑 This ammonite is around 185 Million Years Old 💀 If you’d like an ammonite rock to crack open, please message us directly on yorkshire fossils or visit our website yorkshirefossils.NET 🦕 For more videos, check out our YouTube channel Yorkshire Fossils 🏝 Thanks for supporting our page! 🐊 #natural #nature #fossil #fossils #ancient #a

Substituting Wollastonite for Whiting in Glazes

Conichalcite with Halloysite and Calcite