9iddbts ((NIFONTOVITE)), $40 MINIMUM BID, Charcas, San Luis Potosi, Mexico, 3.5 x 2 x 2 cm, Miniature | |
Here is the last one of this rare boron mineral from the find a couple of years ago. Two or three colorless terminated 6 MM crystals protrude from the matrix and a 10 MM crytal laying across the matrix. |