CMP87CD5: Botryoidal aggregates of the “wood tin” variety of Cassiterite, with a bright yellow-orange color and concentric growths, as can be seen on the sides of the piece.
This specimen comes from the collection of duplicates of Carles Curto (number 1967.12) whose digital catalogue entry and handwritten label we will send to the buyer.
Santa María del Oro, Municipio Charcas, San Luis Potosí  Mexico

Specimen size: 5.4 × 4.5 × 2 cm = 2.13” × 1.77” × 0.79”