Large Natural Tumbled Magnesite Pendant from Brazil - 1.3"

This is brain-like form natural tumbled Magnesite Pendant from Brazil. Stones have dark thread of veins or a web-like matrix across its surface. Pendant has a 3mm hole through it.
Location: Serra das Eguas, Brumado, Bahia,Brazil
Size: 3.3 x 2.7 x 1.3 Centimeters
Weigh: 16.8 Grams