The larger one glows under UV black light. 

The crystals have a unique appearance that resembles a rock or crystal, and the specimen is classified as a Mineral or Crystal? 

The origin of this specimen is unknown, and it was manufactured in an unknown country or region.

. This collectible displays a strange and unique beauty that will surely capture the attention of any crystal collector. 

Its rarity and unknown origin make it a must-have for anyone who wants to add a special piece to their collection. This specimen is perfect for display in a home or office, and its large size allows for easy viewing from a distance.