David K. Joyce


7.0x5.8x3.5 cm

California, USA


Item number: 22204

Here is somethng that you don't see very often! An excellent specimen of clusters of radiating, acicular, probertite crystals from the famous boron mining area of California. The back of the specimen is covered with a green mineral that appears like malachite but I'm don't know what it is. Looks great for a rare mineral specimen! r