Small real geodes, Mexico. Sold individually

A variety of real geodes!  These come from Mexico.  The colours and banding are natural.  The middle one shows layers at the bottom that occurred as differently mineralized water lay in the cavity at different times, building up different colours.  It also has an unusual pink blush banding around it.

Left: 3/8 inch (0.95 cm) wide, 11/16 inch (1.75 cm) tall.

Centre: 3/8 inch (0.95 cm) wide, 9/16 inch (1.4 cm) tall.

Right: 11/16 inch (1.75 cm) wide, 1/2 inch (1.3 cm) tall.  On a sterling silver stand.