Polished Black Tourmaline Freeform Collectors Specimen Observe its excellent UV fluorescence

Observe its excellent UV fluorescence

The stone itself is a rich tapestry of deep reds

Embrace the raw beauty of nature with this unique Amethyst Geode Cluster

these should be considered as sugar treated

Polished Black Tourmaline Freeform Collectors Specimen Observe its excellent UV fluorescenceThis is a polished black tourmaline Freeform. It's a naturally dark, opaque black color. You'll find that it has a smooth feel from being polished. Its hard to take a good picture due to the polish. An interesting fact about tourmaline is that it's a pyroelectric and piezoelectric mineral. This means it can generate an electrical charge when heated or when subjected to pressure. This property was actually known for centuries, with early Dutch traders