MC13AM7: Group of Datolite crystals with sharp crystal forms, translucent, with good luster and a pale green color and bordered by a second generation of small, very transparent and lustrous white crystals of Calcite. A Mexican classic that we will send in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label.
Charcas, Municipio Charcas, San Luis Potosí  Mexico

Specimen size: 2.4 × 2.3 × 2.2 cm = 0.94” × 0.91” × 0.87”

Main crystal size: 1.3 × 1.2 cm = 0.51” × 0.47”