These are incredibly rare, beautiful pieces of polished Baltic Amber. These all have inclusions where we could see at least one insect. Some are quite small - termites, small prehistoric bugs and even a mosquito! If you have a decent magnifying glass you might find all kinds of weird and wonderful prehistoric plant and animal matter.
Amber is technically not a crystal or mineral, but it is one of the few organic gemstones recognised by the gemological world. The magical quality is that insects (and even sometimes larger creatures such as lizards!) are captured within the resin as it leaks and creeps down. Baltic Amber is 40-60 million years old!
These are amazing! Amber this clear with insects is a rare find. These come in small pieces - they're only around 5-20mm each in size.