9iddbjmnr ((TV ROCK aka ULEXITE)), $25 MINIMUM BID, Boron Open Pit Mine, Kramer Borate deposit, Boron, Kerns County, California, 15 x 4 x 2.5 cm, Large Cabinet | |
Here is an uncommon large specimen of Ulexite, a natural fiber optic mineral known as TV rock. Imprints on a paper put on the bottom of the specimen looks like it is just under the surface of the top of the specimen. It also transfers light. Usually only the small examples are seen for sale. This is a great large specimen. ex Jim Minette collection. |