9iddbjmis ((TV ROCK aka ULEXITE)), $1 MINIMUM BID, Boron Open Pit Mine, Kramer Borate deposit, Boron, Kerns County, California, 5.7 x 2 x 1.5 cm, Miniature | |
Here is a long 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. ex Jim Minette collection. |