Chiastolite

16pcs :Approx 292g
Size:Approx 22.8-35.9x16.1-22.8x16.4-16.8mm
(Size may vary depending on how you measure, so please use it as a guide.)
Undrilled
Color: Brown
Usage: Ornament, mineral collection, amulet, power stone, healing stone

These are undrilled Chiastolite nuggets from Brazil. Chiastolite is a natural stone characterized by its distinctive cross pattern, and it is a variety of Andalusite. (It is also known as "Chiastolite" or "Kaiastolite".) Commonly called "Cross Stone," it has been used as an amulet for centuries.
The item in the image is the actual product.

[*The grid used in the image is 1cm x 1cm.]