The Amethyst geodes are unique structures that are composed of 3 layers. Outer layer- Smooth basalt Middle layer- Calcite Inner Layer- Amethyst clusters and the shards. If you are struggling to ...

forming amethyst vugs and geodes. These vibrant purple quartz crystals can often be found lined inside holes weathered into the fractured basalts. High quality clusters have been collected from sites ...

Emerald is the most famous member of the beryl family. Legends endowed the wearer with the ability to foresee the future when emerald was placed under the tongue, as well as to reveal truth and be ...

Python library for processing and standardizing carbonate clumped-isotope analyses, from low-level data out of a dual-inlet mass spectrometer to final, “absolute ...