- Tincalconite Ps. After Borax
- Miniature, 4.5 x 1.0 x 0.9 cm
- U.S. Borax open pit (Boron pit), Boron, Kramer District, Kern Co., California, USA
- Ex. Al Ordway
A striking, very lightweight plate of a snow-white pseudomorph of tincalconite after sharp, tabular borax crystal, from the U.S Borax Mine of California. Complete all-around and pristine, this is also a rare and very unusual pseudomorph. Excellent material from this famous district. They are so lightweight you really have trouble believing these are natural crystals, but they are.